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Compact USB-A to RJ45 adapter with aluminium housing and braided cable

No Sew

No Sew USB-A to 2.5GbE RJ45 Network Adapter 202485

SKU CH-4KNN-4S3ZS

Adds a 2.5Gbps RJ45 Ethernet port to any USB-A computer for faster wired transfers and 4K streaming

  • Add 2.5 Gbps wired speed via USB-A for faster transfers
  • Realtek RTL8156BG controller delivers stable 2.5GbE performance
  • Aluminium housing dissipates heat during sustained data transfers
  • Braided cable resists wear for everyday durability
  • Works with Windows, macOS, Linux and ChromeOS via USB-A

2.5GbE USB-A Adapter for Laptops and Desktops

This USB-A to RJ45 adapter adds a 2.5Gbps wired Ethernet port to laptops, desktops and mini PCs that lack one. It is aimed at home-office users, travellers and docking-station setups where Wi-Fi congestion or missing ports are a problem.

Sustained Transfer Behaviour

The Realtek RTL8156BG controller maintains stable 2.5GbE throughput during long file copies and 4K streams. Backward compatibility with 10/100/1000Mbps networks lets it fall back to existing switches and routers without reconfiguration.

Aluminium Housing and Braided Cable

An aluminium shell dissipates heat during extended transfers while a braided cable resists everyday wear. The adapter works with Windows, macOS, Linux and ChromeOS but is not compatible with Nintendo Switch, Wii or TV devices.

Highlights

  • Add 2.5 Gbps wired speed via USB-A for faster transfers
  • Realtek RTL8156BG controller delivers stable 2.5GbE performance
  • Aluminium housing dissipates heat during sustained data transfers
  • Braided cable resists wear for everyday durability
  • Works with Windows, macOS, Linux and ChromeOS via USB-A

Specifications

Model202485

Questions about this item

How much heat does the aluminum housing of the 202485 adapter dissipate during all-day 2.5Gbps transfers?

The aluminum housing is designed to dissipate heat during sustained high-speed transfers, keeping the Realtek RTL8156BG controller at stable operating temperatures.

What host port must my laptop or desktop already have for this USB-A to RJ45 adapter to function?

Your device must provide a standard USB-A host port; the adapter does not work with USB-C only hosts or consoles such as Nintendo Switch.

Will the 202485 adapter negotiate down to 1000Mbps when plugged into my existing Gigabit switch?

Yes, it is backward compatible with 10, 100 and 1000Mbps networks, so it will link at Gigabit speed on older switches.

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