pushing the adoption of Compatible Fiber Optic Cable through

While the adoption of optic cables slowly moves along, Intel researchers are already creating new Thunderbolt tech based on silicon photonics, which has the ability to transfer data as much as five times faster than current Thunderbolt tech, and it's expected to reach the hands of consumers by Compatible Fiber Optic Cable will offer faster data transfer speeds, and will be able to provide data transfers over distances of tens of meters ...That's amazing, you mean I'll be able to locate my usb drive 10 metres away from my computer? Wow.The distances for fiber channel, 10 gigabit ethernet and freespace Compatible Fiber Optic Cable are just insane, as for the global Internet, it's unbelievable how these glass pipes reach around the planet.One of the promises of Intel's Thunderbolt technology was the possibility for fiber optic cables, offering greater cable lengths and setting the stage for faster connectivity once the standard matures. But Thunderbolt launched using only traditional copper wire cables, and there has been some dispute about just how soon Compatible Fiber Optic Cable will become available.

Cisco QSFP 4SFP10G CU1M Twinaxial splitter and others

 Twinaxial splitter 3064 E is a product that is popular today,and now I will show you a place where you can buy the Cisco QSFP 4SFP10G CU1M Twinaxial splitter 3064 E at good price, I know if the Cisco QSFP 4SFP10G CU1M Twinaxial splitter 3064 E iscurrently being sought through the search engines like google, bing,yahoo and othersThe Cisco QSFP 4SFP10G CU1M (Quad Small Form-Factor Pluggable Plus) modules offer customers a wide variety of high-density 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider transport applications.Cisco QSFP 4SFP10G CU1M direct-attach breakout cables are suitable for very short distances and offer a highly cost-effective way to connect within racks and across adjacent racks. These breakout cables connect to a 40G QSFP+ port of a Cisco switch on one end and to four 10G SFP+ ports of a Cisco switch on the other end. Cisco currently offers passive cables in lengths of 1, 3 and 5 meters, and active cables in lengths of 7 and 10 meters.Shop at Amazon.co.uk for Cisco Compatible QSFP+ Direct Attach Copper Breakout Cable QSFP 4SFP10G CU1M.

MiniSAS 8088 controller cards come complete with an easy

There was the suggestion that the cost of Thunderbolt cables was in-line with other high-speed cables such as external MiniSAS 8088 (Serial Attached SCSI) and Infiniband, both of which have been available for years now. Now, I can understand the high cost of these cables, which are used by specialty, high-performance applications. But Thunderbolt?Sep 22, 2011 - I have a Vertex 3 and my OWC SSD is in the mail to me today and I'd like to have a solution MiniSAS 8088 for making full use of their speed.The MAXPower RAID MiniSAS 8088 card features two external mini-SAS ports that enable connecting and RAIDing multi-drive mini-SAS external enclosures or up to eight eSATA external enclosures via MiniSAS 8088. For Mac and PC users who want to connect and RAID both external enclosures as well as internal drives, the MAXPower RAID mini-SAS 6G-1e1i card features one external mini-SAS port and one internal mini-SAS port

Fibre Channel and SFP+ Active DAC Assembly

SFP+ Active DAC will offer data center designers an interesting choice in the 2011 timeframe In the past two years an unprecedented innovation occurred.  Instead of connecting two SFP+ Active DAC interfaces together using optics, a direct way of connecting without optical interfaces was created, using cables with ends built to behave as SFP+ optical modules. That’s why SFP+ Active DAC is being adopt
Campus LANs are used to tie together multiple buildings, typically spanning longer distances.  In this case neither 10GBase-T nor SFP+ Active DAC is a good choice, and most network designers use fiber optics to provide long distance capability Buy Compatible from China factory, ship in 1 day, Return ... passive SFP+ Twinax cables in lengths of 0.5 to 10 meters and active  Now On Sale [20% OFF] -- Active SFP+ Cables by Amphenol provide an ideal low-cost alternative to multimode SFP+ optical modules. Each Amphenol  Assembly emulates a pair of optical modules with complete system transparency, thus allowing you to cut your power budget in half and your cable budget by far more.

which include SFP 1.25Gb/s cost effective

SFP 1.25Gb/s can be regarded as the upgrade version GBIC. Unlike GBIC with SC fiber optic interfaces, cisco SFP is with LC interface. Moreover, its main body size of SFP is only about half of GBIC, which makes SFP space saving. Cisco pluggable transceivers offer a convenient and cost effective solution for the adoption in data centers, campuses, metropolitan area access and ring networks, and storage area networks. Users can replace a single SFP module during the process instead of replace the whole board with many modules on it. Cisco Transceiver Modules support Ethernet, Sonet/SDH and Fibre Channel applications across all Cisco switching and routing platforms. The Cisco SFP transceiver is defined by a multi source agreement between some manufacturers in the industry. Cisco SFP fiber optic transceivers, which include SFP 1.25Gb/s,  Cisco DWDM SFP, Cisco Copper SFP and Cisco Bidi SFP. Cisco GLC T SFP transceiver is a hot pluggable module use RJ45 interface, it is compliant to IEEE 802.3 and its dimension is is with plug in module type Mini-GBIC. GLC T is 1000Base SFP fiber optic transceiver module via Category 5 copper line,

which makes SFP 1.25Gb/s as the upgrade

The SFP 1.25Gb/s transceiver modules are hot-pluggable I/O devices that plug into module sockets. The transceiver connects the electrical circuitry of the module with the optical or copper network. GBIC transceiver, short name for the Gigabit Interface Converter, is a media conversion device between Gigabit Ethernet and fiber optic networks. Via the GBIC transceiver, Gigabit network equipment can directly connect to copper wires, single mode fiber ports or multimode fiber ports. SFP 1.25Gb/s can be regarded as the upgrade version GBIC. Unlike GBIC with SC fiber optic interfaces, cisco SFP is with LC interface. Moreover, its main body size of SFP is only about half of GBIC, which makes SFP space saving Sopto’s SFP 1.25Gb/s support both Gigabit Ethernet and 1x Fiber Channel applications and comply with Gigabit Ethernet requirements. They provide communications over SM and MM fiber and use an connector. Transmission occurs over VCSEL, FP, Distributed Feedback (DFB), or CWDM laser sources, and with PIN or APD receiver options. This product family also has Internal Digital Diagnostic options.

between an QSFP to XFP Cable optics module

Common direct attach cables include SFP cables, SFP+ cables, QSFP to XFP Cable, QSFP+ cables, MIni SAS cables, CX4 cables. These direct attach cables can meet the ever growing need to cost-effectively deliver more bandwidth, and they can be customized in different length to meet your requirement

The nitty gritty details between an XFP optics module and an SFP+ optics module are fairly straight forward.  For QSFP to XFP Cable, on the transmit side of things, the optics module standard provided additional signal conditioning before  For SFP, there is no additional signal conditioning provided in the module specification.  Essentially, with the interface to SFP modules (called the SFI interface), the signaling requirements are very much more strict then the signaling required from XFI interfaces to the QSFP to XFP Cable modules.On the receive side, there is a similar need in XFP modules for signal retiming that is no longer required in SFP+ modules.

Cisco QSFP to CX4 can be as a fiber optic solutions

Cisco QSFP to CX4 use cutting edge technology to provide an excellent hybrid cable solution for CX4/InfiniBand and QSFP rated switches, network adapters, and storage arrays. These cables have a QSFP connector on one end and a CX4 Connector on the opposite end. Each Cisco QSFP to CX4 permits auto-negotiation between the two connected devices for optimal network throughput. Reaching data rates of up 5Gpbs per channel. Compatible with 4x Infiniband SDR/DDR and 10 GbE applications.This cable is available at lengths from 0.5m to 15m.No matter if you need to interface to Infiniband, SC4 or SAS, Cables Plus has you covered. Cisco QSFP to CX4 CABLE found in applications connecting SFP switch to storage devices or computing clusters.Ltd also offers SFP+ Passive Cable, Fibre optic Active, Cisco QSFP to CX4 and Minisas Cable etc. high speed cable, SFP+, XFP, XENPAK and X2 etc. 10G transceivers and various 1000Base,100Base,OC3,OC12 and OC48 optical modules.

gritty details between an QSFP to XFP Cable optics module

QSFP to XFP Cable is suitable for very short distances and offer data rates up to 40Gb/s supporting Fiber Channel, Ethernet, SDH/SONET and Infiniband standards to maximize performance. It provides a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of QSFP+ switches within racks and across adjacent racks. FIberStore provide QSFP+ cables including QSFP+ to 4 SFP+ Breakout Cable, QSFP to CX4 Cable, QSFP to XFP Cable. These cables are available in lengths up to 20m, and we also offer custom cable length to meet your requirement The real reason that SFP+ can be so much more compact than an older QSFP to XFP Cable module is due to this difference in internal circuitry. This is why SFP+ modules are smaller, and generally consume 0.5-1.0W less than respective XFP modules.

less popular in QSFP to CX4 the data center

At a distance of about 100m range, the only only QSFP to CX4 can use multimode fiber supports SR, or within the 10km using duplex single-mode fiber optic QSFP switches support SR–is using the same port. ColorChip and other companies such as Sumitomo QSFP module; Oclaro (by Opnext mergers and acquisitions) QSFP (also known as Quad Small Form-Factor Pluggable) copper cable assemblies are a high-performance computing connectivity solutions supporting InfiniBand QDR, DDR,SDR, CX4, Fibre Channel and SAS applications.QSFP+ to CX4 Active Optical cables feature a QSFP+ Zinc Die Cast SFF-8436 connector on one end, and an External CX4 SFF-8470 with a pull latch connector on the other end. This cable is built using Optical Fiber for Active ports.SFPDA is similar in concept QSFP to CX4 but provides a bit more flexibility. Normally, you may have a switch or NIC that is designed to be able to support the addition of SFP based optics modules for a 10GbE fiber connection.There are also what referred to as ‘active optical' cables are for QSFP to CX4, which actually have an optics module in the termination of the cable,QSFP to CX4 connectors provide four channels of data in one pluggable interface. Each channel is capable of transferring data at 10Gb/s and supports a total of 40Gb/s as specified for QSFP+.

pluggable CX4 to QSFP Cables solution is designed

Our CX4 cables provide the fastest transfer rates to offer scalable and cost effective solution for testing 10G and Infiniband ports. These assemblies enable hardware OEMs and data center operators to achieve higher port density and configurability at a low cost while reducing the power requirement. However, what has been lacking until now has been the transmission distance. Currently, using the multimode QSFPs+ available, distances of up to 150m can be achieved on OM4 fiber.optical loopback host connector, connectors and cages stacked style integration.CX4 to QSFP Cables assembly is designed to provide a stacked connector configuration in the demand of very high density. The system will support 10 G Ethernet, Fibre Channel, InfiniBand , SAS and standards with different data rate options.A robust 4.50 mm bullet cable to ensure the integrity and CX4 to QSFP Cables routing cables required for installation is chassis is dispersed over 25 meters. Loopbacks features compact housing compatible with module spacing and loop optical transmit ports to accept port test, aging, and on-site troubleshooting.

FiberStore supply hp XFP to SFP+ Active and active

The SFP+ module can be a variant of the SFP optical transceiver. The hp XFP to SFP+ Active module form factor is 30% smaller, uses less power, requires fewer components, and it is less than the 10-Gigabit small form-factor pluggable module (XFP) form factor, that was already smaller and used less power compared to XAUI-based XENPAK and X2 form factors.The SFP+ form factor significantly simplifies the functionality of the 10G optical module by moving such functions as clock and data recovery (CDR), electronic dispersion compensation (EDC), 10G SERDES, and signal conditioning that traditionally resided in the XAUI-based modules into 10GbE PHY devices and line cards. Because of this, the modules are smaller, consume less power, and allow increased port density while being less than hp XFP to SFP+ Active. Some products on the market now provide 48 ports or maybe more inside a rack.give you the SFP+ transceivers are also not merely efficient, but cost effective, using a power consumption of less than 1W.

You will run a copper CX4 to QSFP from

These HCAs are not used directly by the OS, instead, host-side drivers work together with the Xsigo I/O Director to ensure that the appropriate vNIC and vHBA devices are available to the OS.  Of critical importance is that thes vNIC and vHBA devices work exactly as physical NICs and HBAs and the OS is none the wiser. Infiniband as you will ever see or need to configure in the solution. The rest is normal Ethernet and FC. That means you have to go to Optical quicker.  The Cisco list price of an SFP+ Optical tranceiver is $1795 (that is for 1 end…you need 2 to make a cable).  CX-4 optical is <$1000 list for teh entire active optical cable.  QDR (40Gb ) IB is already out and uses CX4 to QSFP…….and so will 40 GbE in a few years….so IB is actually paving the way for 40GbE.  It is no surprise that Mellanox was the 1st to announce a 40GbE NIC….since it is really the same ASIC as their 40Gb IB adapter…..same CX4 to QSFP theory, you can load an IB driver or an Ethernet driver, or an RDMAover Ethernet driver and have channel IO and/or Ethernet ….now that is true convergence. I would be happy to answer any other questions  discount offers once on its slate of new product launches in 2012 to celebrate. Just enter coupon code upon checkout to and get 12% off your first online order.

QSFP Passive Cable are available in standard program

QSFP Passive Cable (Quad Small Form-factor Pluggable Plus) is a transceiver interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic cable, widely used for data communications applications. It is a industry format jointly developed and supported by many network component vendors. QSFP is also the IEEE standard connector for the emerging 40GbE standard. Like SFP+, QSFP Passive Cable and optical cabling solutions

QSFP Passive Cable supports link lengths of 100m and 150m respectively on laser-optimized OM3 and OM4 multimode fiber cables. It primarily enables high-bandwidth 40G optical links over ribbon fiber cables terminated with multi-fiber connectors, and could also be used along with ribbon to duplex fiber breakout cables for connectivity to four 10GBASE-SR optical interfaces.
Fiberstore offers the best QSFP modules. All these QSFP Passive Cable are Cisco, Juniper, IBM and HP compatible! The QSFP transceivers are great a solution for multi-lane data communication and interconnect applications. In addition to 40Gbps Ethernet interconnects, it can be used in datacom/telecom switch, and router connections, as well as data aggregation and backplane applications. Also you can have a wide selection of other transceivers at Fiberstore.com, including xfp transceivers, CFP modules, sfp transceivers and so on.

Intel Fiber CX4 to QSFP Cables data storage

On Order CX4 to QSFP Cables from 3M? Interconnect Solutions Now In-Stock! Available in lengths ranging from , 3M's Active Optical Cables offer the best power consumption in their class and help bridge the gap between gear with SFF-8436 ports (QSFP and QSFP+).and SFF-8470 ports (CX4/DDR InfiniBand). You may view our entire selection of CX4 to QSFP Cables Hybrid Active Optical Cables below. speed applications including switched fabric I/O, switches, routers, data storage arrays,integrated 10.0 Gbps optical transceivers (40G+ aggregate) each; ensuring compatibility with the latest QSFP and QSFP+ enabled hardware in datacenters and HPC clusters. Interconnect Products and are ideal for bandwidth-intense applications such as QDR InfiniBand, 40-Gigabit Ethernet, Fibre Channel, and SA QSFP+ connectors add an extended EMI rail to meet 40 Gigabit Ethernet specifications and are reverse compatible with QSFP ports.copper cable technology,CX4 to QSFP Cables have quickly become the interface of choice for switches, routers, and high performance computer clusters.Please click here to view our entire selection of CX4-CX4 Active Optical Cables

The hp XFP to SFP+ Active is a lot more compact in proportions

Many companies, such as Cisco, Finisar, and Sumitomo, have released SFP+ transceivers. SFP+ ensure the 10Gbps data transmission and the most densely installation capability as well as the lowest cost, currently it is well acknowledged as the ultimate choice for the 10Gbps fiber optic transceivers. Among them, hp XFP to SFP+ Active is the mainstream market. Cisco 10Gbase SFP+ transceivers are used for high speed 10Gigabit Ethernet, linking the equipment to fiber optic networks. Cisco SFP+ products include active SFP+ cables and hp XFP to SFP+ Active. There is also copper transceiver available from Cisco.The Cisco 10GBASE hp XFP to SFP+ Active modules offer customers a wide variety of 10 Gigabit Ethernet connectivity selections for data center, enterprise wiring closet, and service provider transport applications.SFP+ module can be a next-generation transceiver module specified by the ANSI T11 Group for 8.5 Gbps and 10Gbps Fiber Channel and Ethernet applications.

hybrid QSFP+ Passive Copper are compliant with

I have two Dell MXL blades [FTOS 8.3.16.2] in a M1000e chassis with a MXL blade in slot A1 and slot A2 as shown below. The ‘fortyGigE 0/33′ port on each switch is connected to the other via a 40 GbE QSFP+ Passive Copper. Dell MXL blade switches support both ring and daisy chain topologies. In this example, I simply daisy chain two MXL blades to create one logical switch that can be managed as one unit. In a typical scenario, VLT can then be employed from two ToR switches down to the MXL stack using the two free fixed 40GbE ports; however, I do not demonstrate this VLT configuration here. To see VLT configuration see my prior blog
Movement to QSFP and XFP show density in the datacenter on the rise! 10/100 Gbps are making inroads, particularly within the rack and across the datacenter. Long range 40Gbps is 4 trunked 10 Ge links, either MO4 fiber or extended range out to 3000 Meters - that’s 1.86 miles. QSFP+ Passive Copper allows 2x 10Ge fiber connections (fiber count of 4) connections in a single plug switch-side with a split tail host-side. That is 1 cable for 2x 10Ge drops from host to switch.  That just cut a typical cabling load in the rack in 1/2.  Choose QSFP+ Passive Copper for even more affordable cabling! Did someone say 10Gbps over copper? Boy, the photons must be getting scared. For another reference

distances and offer Cisco XFP passive Cable

Fibre Channel and telecom switches and standard PCI (peripheral component interconnect) based server and storage connections,the place where a half size as  optical transceiver is desired. X2 Transceiver is physically smaller than but maintains the mature electrical specification The Cisco XFP passive Cable is to use integrated digital diagnostic functions. The 10GBase-LR transceivers operate in a 1310nm optical wavelength xfp is hot swappable fiber optic transceiver employed for 10G networks like 10 Gigabit Ethernet, SDH, SONET, XFP LR support data rate from 9.95Gbps to 11.1Gbps, max working distance of the XFP LR fiber transceiver is Compatible 10G X2 we also supply, are Cisco 10G Base X2 module,  etc.We not merely have cisco X2,and involve some other cisco transceiver Ingellen Cisco XFP passive Cable includes digital diagnostics that provide management that were added to the standard.

ESX thought provide 10GB HBA Ethernet

You can see a screenshot of the error here. arrays in the lab, and I’ll be using the equipment to help generate reference architectures and standard configurations for the ePlus virtualization team been following my updates on Twitter, you know that I’m in the process of installing 10GB HBA Ethernet and Fibre I had to install the RPM directly and include the --force parameter because ESX thought the version that was already installed was newer than the beta driver omit the --nosigcheck parameter because esxupdate then failed with error 20 (VibSigMissing). That, unfortunately, worked only for the Ethernet but the ESX console showed an error about missing signatures. You can see a screenshot of the error here.Typical FC 10GB HBA can only reach 160,000 IOPS or so, a rate the iSCSI initiator could handle with large blocks and low CPU utilization.allow your physical network with clients at 1Gb to benefit of your troughput from your storage-VM. With a second 10Gb pNIC, which is just attached As a performance upgrade I can then use a server with lots of RAM, stick on Windows Storage Server 2008 r2 and a couple of good controllers, plus a couple of 10GB HBA to act as a head unit, and attach the JBOD to it I've just got a 3 node cluster running on the SAN so it's unlikely I'm going to feel much of a performance gain from 10GB HBA and the rest.

Return Loss QSFP+ Passive Copper form factor interface

Siemon, a leading global manufacturer of IT network cabling and infrastructure systems, announces the release of its 40 Gb/s 40+Gb/s QSFP+ passive copper cabling products.  These shielded 4-lane copper cable assemblies were developed as a cost-effective, low-power option for high-speed data centre interconnects up to 10 metres, ideal for applications such as high-performance computing (HPC), enterprise networking, video networking and network storage systems.

The QSFP+ Passive Copper form factor interface can replace up to three standard SFP+ connections, providing greater port density and reduced system cost. Advanced design and manufacturing processes, such as precision wire stripping and a unique automated termination process result in optimised cross talk and Return Loss. The same automated processes result in Siemon QSFP+ Passive Copper consistent and industry leading signal integrity performance.

flexibility QSFP to CX4 cable interface

Amphenol extensive experience in the design and manufacture of interconnection systems compliant InfiniBand proved crucial for the development of its new QDR InfiniBand cable qualified QSFP to CX4 cable turn Nick Blas, Product Marketing Manager for Amphenol Cables on request. “Does Amphenol has a rich heritage of participation in InfiniBand Trade Association-sponsored events, including Plugfest IBTA twice a year. Gagné This strategic partnership has produced Amphenol InfiniBand larger location on the IBTA Integrators List coveted a list of products tested and accepted by the IBTA as conforming to the InfiniBand ? architecture specification.

CX4 Gigabit modules provide a high density

These cables have an QSFP connector on one end and a CX4 Gigabit on the other end of the cable. With a data rate of up to 5 Gpbs/channel they can be used for 4x InfiniBand and 10 Gbit Ethernet Active Optical CX4 Gigabit from DataStorageCables eliminate the need for a separate transceiver and cable.How Does CX4 Gigabit Compare with 10GBase-R & 10GBase-T?CX4 has numerous advantages over 10GBase-R (Fiber) and 10GBase-T An optical connection would require 10-Gig optical modules and a fiber patch cord to function. comparison of how CX4 Gigabit stacks up in terms of power-consumption in a 50-server datacenter. Essentially, CX4 Gigabit consumes at very low cost and reduced power budget.These cables have an QSFP connector on one end and a CX4 Gigabit on the other end of the cable in lengths up to meters. Custom lengths are available, as well as Low Smoke Zero Halogen cable material. For example, hybrid cables can connect between DDR adapters with CX4 Gigabit to high density switches with QSFP connectors. With a CX4 Gigabit, you can connect a VPI adapter card to a 10GigE switch.

fiber connector inter HP SFP 1.25G are compatible

ne, who wants to be a part of a competitive optical fiber industry, it ought to search the dependable source of supplying fibre optics products manually or via internet. Ingellen is a well-known center  HP SFP 1.25G modules combine high quality with low cost and will give you an ideal alternative The GLC-EX-SMD trancevier is high performance, cost effective modules supporting dual data-rate of  and 40km transmission distance with SMF. They are all fully compatible with SFP Multi-Source Agreement(MSA).effective fiber optic products for networking applications. For more information used in optical communications for both telecommunication and data bidirectional communications applications. It interfaces a network device mother board (for a switch, router or similar device) to a fiber optic or unshielded twisted pair networking cable. They simultaneously comply with Gigabit  Cisco HP SFP 1.25G is a next-generation transceiver module form factor specified by the ANSI T11 Group for 8.5 G bps and 10 G bps Fiber Channel and Ethernet applications. Similar to 1-4 G bps SFP modules, the SFP+ form factor is smaller than

Each Cisco QSFP to CX4 copper cable permits

Cisco QSFP to CX4 use cutting edge technology to provide an excellent hybrid cable solution for CX4/InfiniBand and QSFP rated switches, network adapters, and storage arrays. These cables have a QSFP connector on one end and a CX4 Connector on the opposite end. Each Cisco QSFP to CX4 copper cable permits auto-negotiation between the two connected devices for optimal network throughput. Reaching data rates of up 5Gpbs per channel. Compatible with 4x Infiniband SDR/DDR and 10 GbE applications.

higher than the Cisco QSFP to CX4 interface has

QSFP (Quad Small Form-factor Pluggable): four-channel SFP interface (QSFP), Cisco QSFP to CX4 born in order to meet the market demand for higher density of high-speed pluggable solutions.
The 4-channel pluggable interface transfer rate up to 40Gbps. A lot of the XFP mature key technologies are applied to the design.The QSFP can be as a fiber optic solutions, and the speed and density are better than a 4-channelCisco QSFP to CX4 interface. Support four channels of data transmission speed of 10Gbps per channel at the under XFP same port sizes, so the density of the QSFP can reach 4 times the XFP products, the SFP + product 3 times. Has 4 channels and the density is higher than the Cisco QSFP to CX4 interface has been adopted by the InfiniBand standard.

Cisco QSFP to CX4 interconnects offer the advantages of low-cost, low-latency, and low-power consumption at the expense of range. The length limitation for Cisco QSFP to CX4 is 15m (49ft) when using passive cable assemblies. Some novel solutions exist which use active signal boosters or fiber optics to achieve lengths beyond 15m, but these solutions negate the cost, latency, and power benefits inherent to Cisco QSFP to CX4 technology. Fortunately, lengths beyond 15m are rarely needed, since most switches reside in close proximity within a wiring closet.