Will this work with Windows 11?

The listed systems are Windows Vista, XP, 2000, 7, 8 and 10, plus Linux and macOS. Windows 11 is not listed, so treat it as unsupported and check for a Realtek RTL8192EU driver before buying.

Do I need the included CD to install it?

Not necessarily. The RTL8192EU chip has drivers available from Realtek and from most Linux and macOS distributions. The CD helps on old Windows machines, but many laptops no longer have a disc drive.

Does it support 5GHz?

No. It is a single-band 2.4GHz adapter. It will not see or connect to 5GHz networks, and it cannot use the faster AC or AX standards.

Will it reach 300Mbps?

300Mbps is the maximum link rate on 2.4GHz. Real throughput is typically a fraction of that, and it drops further with distance, walls and interference from neighboring networks.

Can I use it on a desktop PC?

Yes. It plugs into any standard USB-A port and is a common way to add Wi-Fi to a desktop without a wireless card. Its small size means it sits close to the case, which can weaken reception.

One 300M network card adapter and one driver CD, in blister packaging. No USB extension cable or antenna is included.

Where is the 300Mbps Mini Wireless USB WiFi Adapter cheapest?

At Deal.ai, for $4.71, as of our latest check.

300Mbps Mini Wireless USB WiFi Adapter

Sold and shipped by Deal.ai

$4.71+ $5.23 shipping

Shipping is combined: each extra item adds only a little.

Color: Black

Arrives about Nov 16–25, from a US warehouse

30-day full refund: if you're not happy with it for any reason, or it never arrives, tell us within 30 days and we refund you in full. Shipping and refunds

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Price facts

Last seen at $4.71 at Deal.ai on Nov 12.

Our take on the 300Mbps Mini Wireless USB WiFi Adapter

This is a tiny USB Wi-Fi adapter built on the Realtek RTL8192EU chip, rated at 300Mbps on the 2.4GHz band. It is small and light enough to leave in a laptop port, and it ships with a driver CD for older Windows, Linux and macOS systems. It suits desktops without Wi-Fi, older laptops with a dead or slow card, and anyone who wants a cheap spare radio. It is a single-band 2.4GHz device, so it is slower and more congested than dual-band AC or AX adapters, and it has no external antenna or USB extension.