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Green circuit board with four RJ45 ports and a metal bracket

C&N

C&N Quad-port 2.5 GbE Network Adapter PCIe 3.1 Intel I225-V Low Profile Bracket

SKU CH-FFKZ-XAKCZ

Adds four 2.5 GbE RJ45 ports over a PCIe 3.1 x4 slot using Intel I225-V controllers and includes a low-profile bracket

  • StandardsIEEE802.3bz, IEEE802.3ab ,IEEE802.3u ,IEEE802.3,802.3x ,IEEE
  • Speed2500 megabits_per_second
  • ConnectorsIEEE802.3bz, IEEE802.3ab ,IEEE802.3u ,IEEE802.3,802.3x ,IEEE
  • FeaturesDesktop
  • Dimensions4.25 in x 2.72 in x 0.8 in
  • Weight99 grams
  • Four ports deliver 2.5 GbE bandwidth for multi-gigabit throughput
  • PCIe 3.1 x4 interface provides 5 GT/s lane speed for full port utilisation
  • Low-profile bracket included fits compact or standard-height chassis
  • Intel I225-V controller supports Windows 10/11 and Linux kernels 5.8/5.16.18
  • Each port owns a unique MAC address starting with 1CFD08

Quad-Port 2.5 GbE Adapter

The C&N quad-port 2.5 GbE network adapter adds four 2.5 Gbps RJ45 connections through a single PCIe 3.1 x4 slot. It targets servers, workstations and NAS builds that need multi-gigabit wired throughput without using multiple expansion slots. Each port carries its own MAC address starting with 1CFD08 for easy network identification. Driver support covers Windows 10 and 11, Linux kernel 5.8 and 5.16.18, RHEL 8.1, 8.3 and 8.6, Ubuntu 22.04 LTS, FreeBSD 13.0, VMware ESXi 7.0 and 8.0, plus DPDK, OpenWrt, Unraid and Proxmox VE.

PCIe 3.1 x4 electrical requirement

The card operates at PCIe 3.1 5 GT/s and requires an x4 electrical link; it fits physically into x4, x8 or x16 slots but will not negotiate full bandwidth in an x1 or x2 slot. A low-profile bracket is included for compact chassis installations. The controller integrates MAC and BASE-T PHY supporting 2500BASE-T, 1000BASE-T, 100BASE-TX and 10BASE-TE under IEEE 802.3, 802.3u, 802.3ab and 802.3bz standards. PXE boot is supported for diskless deployments.

Sustained multi-port throughput

Under continuous load across all four ports the I225-V controller maintains line-rate 2.5 Gbps per port thanks to TSN features and advanced power management defined in the IEEE 802.3bz and 802.3az specifications. The 99-gram board measures 4.25 by 2.72 by 0.8 inches, leaving minimal thermal mass, so adequate case airflow is needed to avoid throttling during prolonged heavy traffic. Buyers who need single-port 10 GbE or fibre uplinks should look elsewhere.

Punti di forza

  • Four ports deliver 2.5 GbE bandwidth for multi-gigabit throughput
  • PCIe 3.1 x4 interface provides 5 GT/s lane speed for full port utilisation
  • Low-profile bracket included fits compact or standard-height chassis
  • Intel I225-V controller supports Windows 10/11 and Linux kernels 5.8/5.16.18
  • Each port owns a unique MAC address starting with 1CFD08

Caratteristiche tecniche

BrandC&N
StandardsIEEE802.3bz, IEEE802.3ab ,IEEE802.3u ,IEEE802.3,802.3x ,IEEE802.3z,IEEE802.3az, Ethernet
Speed2500 megabits_per_second
ConnectorsIEEE802.3bz, IEEE802.3ab ,IEEE802.3u ,IEEE802.3,802.3x ,IEEE802.3z,IEEE802.3az, Ethernet
FeaturesDesktop
Dimensions4.25 in x 2.72 in x 0.8 in
Weight99 grams

Domande su questo articolo

How much actual throughput can each 2.5 GbE port deliver inside a desktop PC?

Each port runs at up to 2500 megabits per second and auto-negotiates down to 1000, 100 or 10 megabits per second depending on the connected switch or router.

What does the PCIe 3.1 x4 interface limit in real use?

The card uses a PCI Express 3.1 x4 link at 5 GT/s, giving enough bandwidth for all four 2.5 GbE ports to run simultaneously without bottleneck.

Will the low-profile bracket fit my small-form-factor case?

The board measures 4.25 in by 2.72 in by 0.8 in and includes a low-profile bracket for slim chassis.

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