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M.2 A+E Key 2.5G Gigabit Ethernet Network Card, Realtek with RTL8125BG Chip | 18-cm Cable Length, 10/100/1000/2500Mbps Single RJ-45 Port, Support Windows/Windows Server/RHEL/CentOS/Debian
10Gtek

10Gtek M.2 A+E Key 2.5G Gigabit Ethernet Network Card

Bottom line: The 10Gtek M.2 A+E Key 2.5G Gigabit Ethernet Network Card is a specs-and-price decision rather than a crowd-consensus one in the retro networking cards category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Controller(s):Realtek RTL8125BG.
  • ✓ Backed by 10Gtek's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

SpecPicks Verdict

SpecPicks scored 10Gtek M.2 A+E Key 2.5G Gigabit Ethernet Network Card using a rating × review-volume × price-fit model applied to published specs and reviews across the retro networking cards category. 10Gtek's retro networking cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro networking cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Controller(s):Realtek RTL8125BG.
  • Single RJ-45 Ports, 10/100/1000/2500Mbps.
  • Support PXE, DPDK, WOL, iSCS, Jumbo Frames, Not-Support FCoE.
  • Support Windows 7/8/10/11, Windows Server 2008 R2/2012 R2/2016/2019/2022, RHEL/CentOS 7/8, Debian 9/10/11, Ubuntu 18/20/21, SUES 11/12/15, FreeBSD 11/12/13, Vmware ESXi 6.
  • Full height and low profile bracket included. Compatible COM port size.NOT support hot swaping.

Full Specifications

Brand10Gtek
ColorM.2 A+E Key
Weight2.5g
Unit Count1 Count
Model Number8125-2.5G-1T-M2E-TC
Mfr Part Number8125-2.5G-1T-M2E-TC(1pc)
Number of Items1
Compatible DevicesLaptop, Desktop
Data Link ProtocolEthernet, Gigabit Ethernet ANT
Data Transfer Rate2500 megabits_per_second
Hardware InterfaceEthernet
Full listing titleM.2 A+E Key 2.5G Gigabit Ethernet Network Card, Realtek with RTL8125BG Chip | 18-cm Cable Length, 10/100/1000/2500Mbps Single RJ-45 Port, Support Windows/Windows Server/RHEL/CentOS/Debian

Ready to buy?

M.2 A+E Key 2.5G Gigabit Ethernet Network Card, Realtek with RTL8125BG Chip | 18-cm Cable Length, 10/100/1000/2500Mbps Single RJ-45 Port, Support Windows/Windows Server/RHEL/CentOS/Debian is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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