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C&N ST7381 10G RJ45 network card with Intel X550 controller, PCIe 3.0 x4, full-height and low-profile brackets included

C&N

C&N ST7381 10G RJ45 network card Intel X550 PCIe 3.0 x4

SKU CH-7H60-YJW0B MPN ST7381

A 10Gb RJ45 Ethernet adapter with Intel X550 controller on PCIe 3.0 x4, auto-negotiating speeds down to 100Mb and including both full-height and low-profile brackets

  • Rated speed10 Gbit/s
  • Interface typePci express x4
  • Supported standardsEthernet
  • Connection typesEthernet
  • Bus interfacePci express x4
  • Key featuresPC/Server
  • 10Gb Ethernet over RJ45 with Intel X550 controller
  • PCIe 3.0 x4 interface negotiates 10Gb, 5Gb, 2.5Gb, 1Gb and 100Mb speeds
  • Supports SR-IOV, VMDq, MACsec and IEEE 1588 PTP for virtualization and precision timing
  • Broad OS support including Windows 11, Server 2022, RHEL, Ubuntu and FreeBSD
  • Includes both 12cm regular and 8cm low-profile brackets for flexible installation

10G RJ45 Network Card Intel X550

This C&N ST7381 network card adds a single 10GBASE-T RJ45 port to a PC or server through a PCIe 3.0 x4 slot. The Intel X550 controller auto-negotiates speeds from 100Mb up to 10Gb. It targets administrators who need 10Gb copper connectivity on Windows Server, Linux or ESXi hosts without fibre cabling.

Installation Brackets and Driver Source

A 12cm standard bracket is fitted and an 8cm low-profile bracket is included for slim chassis. The card fits any PCIe 3.0 x4, 2.0 or 1.1 slot with four lanes. Drivers must be downloaded from the Intel website or requested from the supplier; no media is bundled. Mac OS is not supported.

Cable Distance and Protocol Limits

10GBASE-T reaches 55m over Category 6 cable and 100m over Category 6A. The PCIe 3.0 x4 interface provides 8.0GT/s per lane, capping theoretical throughput at the bus level. Features such as SR-IOV, VMDq, MACsec IEEE 802.1 AE and IEEE 1588 PTP are handled by the X550 controller within those bandwidth and distance constraints.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $69.99
Cheaper than about 57% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameC&N
Model nameST7381
Performance
Rated speed10 Gbit/s
Connectivity
Supported standardsEthernet
Ports & slots
Interface typePci express x4
Connection typesEthernet
Bus interfacePci express x4
Size & build
Product weight0.25 kg
In the box
In the boxST7381

Questions about this item

How do I confirm the ST7381 is linked at 10 Gbps after installing it?

Check the adapter properties in Windows Device Manager or run ethtool in Linux; the link speed should read 10 Gbps when connected with Category 6A cable up to 100 m or Category 6 up to 55 m.

What brackets are included with the ST7381 and do I need to buy a cable separately?

The card ships with a pre-installed 12 cm regular-profile bracket and an 8 cm low-profile bracket in the box; an RJ45 Category 6 or 6A cable is not included and must be purchased separately.

Which ST7381 variant should I choose for a PCIe 3.0 x4 slot on Windows Server 2022?

The ST7381 is a single model using the Intel X550 controller on a PCIe 3.0 x4 interface and supports Windows Server 2022 along with Windows 11, 10, Linux and FreeBSD; no other versions or capacities are offered.

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