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Silver aluminium USB 3.1 to Gigabit Ethernet adapter with RJ45 port

STARTECH

STARTECH USB31000SA USB 3.1 Gigabit network card

SKU CH-KW1N-0T2MS MPN USB31000SA

Adds a Gigabit Ethernet port via USB 3.1 with Realtek RTL8153 chipset for native driver support across Windows, macOS, Linux and Chrome OS

  • Rated speed10/100/1000 Mbit/s
  • Interface typeUSB 3.1
  • Key featuresAdd dependable Gigabit Ethernet network access Sleek aluminu
  • Product weight0.01
  • In the boxUSB 3.0 to Gigabit Network Adapter - Silver 1 x Quick Instal
  • Gigabit Ethernet through a USB 3.1 port for fast wired speeds up to 1000 Mbps
  • Realtek RTL8153 chip gives native driver support on Windows, macOS 10.14+ and Linux kernel 4.11+
  • Sleek silver aluminium housing matches MacBook, Chromebook or tablet styling
  • USB bus power means no external adapter is needed
  • Works with USB 3.2 Gen 1, 3.0 and 2.0 hosts for broad compatibility

USB 3.1 Gigabit Adapter for Thin Devices

The StarTech USB31000SA adds a wired RJ45 port to laptops, tablets or 2-in-1s that lack Ethernet. It draws power from the USB bus so no external supply is needed. Native driver support means plug-and-play on Windows 7 and later, macOS 10.14 and later, Linux kernel 4.11 LTS and Chrome OS. The silver aluminium housing matches thin ultraportables.

Realtek RTL8153 Chipset Determines Compatibility

The adapter uses the Realtek RTL8153 controller for 10, 100 and 1000 Mbps negotiated speeds. It supports 9K jumbo frames, VLAN tagging, Wake-on-LAN and Energy Efficient Ethernet. Auto-MDIX handles crossover detection automatically. The USB 3.1 Gen 1 Type-A interface runs at 5 Gbps and remains backward compatible with USB 3.0 and 2.0 hosts.

Fits Single USB-A Port; Frees Wi-Fi Bandwidth

One USB-A socket provides the Ethernet link without occupying a PCIe slot or M.2 key. The dongle weighs 0.01 kg and includes a quick install guide. It suits users who need a stable wired link instead of wireless. Buyers whose device has only USB-C ports will need a separate adapter or hub.

How it compares

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

Price $26.99
Cheaper than about 87% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameStarTech.com
Model nameUSB31000SA
Performance
Rated speed10/100/1000 Mbit/s
Ports & slots
Interface typeUSB 3.1
Size & build
Shipping weight0.08 kg
Package size204 × 107 × 23 mm
In the box
In the boxUSB 3.0 to Gigabit Network Adapter - Silver
1 x Quick Install Guide

Questions about this item

What does the 10/100/1000 Mbps rating mean when I plug this into my laptop?

It negotiates the fastest speed the network supports up to 1000 Mbps, so you get full Gigabit throughput on a wired link instead of typical Wi-Fi bottlenecks.

The box says USB 3.1 — does that change the real-world ceiling compared with USB 3.0?

The adapter uses USB 3.2 Gen 1 Type-A at 5 Gbps, which is electrically identical to USB 3.0, so the practical ceiling stays at Gigabit Ethernet speeds.

Will the silver aluminum dongle block the port next to it on a thin MacBook?

The slimline housing is designed to sit flush alongside other USB-A ports on MacBook, Chromebook or tablet without crowding adjacent sockets.

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