is this good, fast and reliable?

This little thing does a great job. Gives your computer wireless reliably no problem. I've never had an issue, I've been using it on a desktop that doesn't have wireless and it works perfectly.

Questions & Answers: Relper-Lineso Mini USB 300Mbps Wifi Wireless Lan Network Internet Adapter 802.11n/g/b

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Century Xinyang Technology Co., Ltd
Item#: 9SIA4RE9P38088
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Relper-Lineso Mini USB 300Mbps Wifi Wireless Lan Network Internet Adapter 802.11n/g/b

IEEE 802.11n, IEEE 802.11g, IEEE 80211b standard
USB 2.0 interface.Up to 300Mbps Wireless Speed.
Support Windows 7/8/10 /Vista /XP / 2000 /Linux 2.4 or later.

$8^.49 –