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StarTech 2.5GbE USB-A to Ethernet Adapter, USB 3.1, Multi-Speed, NBASE-T
StarTech.com

StarTech 2.5GbE USB-A to Ethernet Adapter, USB 3.1, Multi-Speed, NBASE-T

Bottom line: The StarTech.com StarTech 2.5GbE USB-A to Ethernet Adapter 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

  • ✓ Backed by StarTech.com'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

Manufacturer description

Add 2.5 GbE network access to your laptop, using the USB-A port on your laptop. This USB 3.0 Type-A to Gigabit network adapter gives you wired Ethernet network access. Powerful 2.5 Gigabit Network Connections Ideal for office or home use, the LAN/network adapter supports full 2.5 Gigabit bandwidth by harnessing the performance of USB 3.0. You can quickly access very large files over a 2.5 Gigabit network, saving valuable time every day. Native Driver Support Makes Installation Easy Get up and running quickly. Simply plug this USB A to RJ45 Ethernet dongle into the USB port on your laptop and…

SpecPicks Verdict

SpecPicks scored StarTech.com StarTech 2.5GbE USB-A to Ethernet Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the retro networking cards category. StarTech.com'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

  • HIGH PERFORMANCE: 2.5GbE USB A to Ethernet Adapter allows you to securely connect to high-speed Networks and is backward compatible with existing Gigabit LANs
  • NBASE-T & 2.5GBASE-T: USB 3.1 Ethernet adapter offers bandwidth for content creators & power users on high-performance Laptops/Workstations incl. Lenovo ThinkPad X1 Carbon Dell XPS HP EliteBook/ZBook
  • USB 3.0/3.1 Type-A | 1x RJ45 | 5 Gbps Multi-Gigabit | 3 Speed 2.5G/1G/100 Mbps auto-negotiation | Realtek RTL8156 | NBASE-T/2.5GBASE-T | 16K Jumbo Frame | WoL | VLAN | USB Powered | 2Yr Warranty
  • MAXIMUM BANDWIDTH: Leverage NBASE-T w/ USB-A for 2.5 Gb/s speeds over existing Cat 5e Cables w/o the expense of Cat 6A or Fiber; 3 Speed Auto-Negotiation always provides max bandwidth
  • COMPATIBILITY: Supports many OS and Hypervisors incl. Windows 7/8.1/10, Windows Server 2008 R2/2012 R2/2016/2019, Linux LTS Kernel 4.19+, MacOS 10.11 to 10.14

Full Specifications

BrandStarTech.com
ColorBlack & Space Gray
Weight2.5g
Unit Count1 count
ConnectivityUSB
Model NumberUS2GA30
COMPATIBILITYSupports many OS and Hypervisors incl. Windows 7/8.1/10, Windows Server 2008 R2/2012 R2/2016/2019, Linux LTS Kernel 4.19+, MacOS 10.11 to 10.14
CompatibilityMac, Linux
Built-In MediaCable
Item Type NameNetworking
Mfr Part NumberUS2GA30
Number of Items1
HIGH PERFORMANCE2.5GbE USB A to Ethernet Adapter allows you to securely connect to high-speed Networks and is backward compatible with existing Gigabit LANs
Compatible DevicesDesktop, Laptop
Data Link ProtocolUSB
Data Transfer Rate1000 megabits_per_second
Hardware InterfaceEthernet, USB, USB 3.0
Warranty Description2 Year Warranty
Item Dimensions L x W x H3.1"L x 1"W x 0.6"H
Global Trade Identification Number00065030882958

Ready to buy?

StarTech 2.5GbE USB-A to Ethernet Adapter, USB 3.1, Multi-Speed, NBASE-T 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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