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Dual-port 2.5 Gigabit Ethernet M.2 M+B key expansion card with low-profile bracket

Vszerda

Vszerda Dual 2.5 Gigabit M.2 M+B Key Ethernet Network Expansion Card

SKU CH-3JMS-GD14V

Adds dual 2.5 Gigabit Ethernet ports via an M.2 M+B key interface with low-profile bracket

  • 5 Gigabit Ethernet speeds up wired transfers
  • Dual M.2 M+B key slots fit more motherboards
  • Low-profile 8 cm bracket enables small-case installs
  • IEEE 802.3 family compliance ensures broad network support
  • Windows 98 SE through 10 and Linux driver coverage

Dual 2.5 Gigabit Ethernet Adapter

This PCIe expansion card adds two 2.5 Gigabit Ethernet ports through a single M.2 M+B key slot. It targets builders who need wired multi-gigabit connectivity on platforms lacking native 2.5 GbE controllers. The adapter suits compact servers, embedded appliances and workstations requiring additional high-speed LAN links.

Low-Profile Bracket Kit Included

A 12 cm standard bracket and an 8 cm low-profile bracket ship with the card, letting it fit full-height and slim chassis without extra parts. Broad driver support spans Windows 10, 8.1, 7, Vista, XP, 2000, 98 SE, ME and Linux, so legacy and modern operating systems recognise the adapter immediately.

2.5 Gbps per Port with VLAN Tagging

Each port negotiates 10, 100, 1000 or 25000 Mbps and complies with IEEE 802.3, 802.3u and 802.3ab plus 802.1Q VLAN tagging. The single M.2 interface limits aggregate throughput to the host link speed, so sustained line-rate traffic on both ports simultaneously may saturate the upstream bus. Buyers needing more than two ports or higher aggregate bandwidth should consider multi-lane PCIe alternatives.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $70.99
Pricier than about 80% of the 891 comparable items (median $30.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the 8 cm low-profile bracket need to be swapped if I move the card to a standard-height case?

The card ships with both a 12 cm full-height bracket and an 8 cm low-profile bracket, so you can change brackets without buying extra parts.

What speed ceiling appears first when the dual 2.5 GbE ports run flat out on a PCIe 2.0 x1 slot?

Each port tops out at 2.5 Gb/s, but a single PCIe 2.0 x1 lane delivers roughly 4 Gb/s of usable bandwidth, so the bus becomes the bottleneck before the Ethernet controllers do.

How much extra heat or fan noise should I expect when both 2.5 GbE links stay saturated all day?

The adapter has no onboard fan and draws modest power, so sustained 2.5 Gb/s traffic adds only a small amount of warmth inside the case and no audible noise.

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