If you have a wireless router and you want to use your desktop computer without buying an internet cable, than you can use this Wifi receiver to get the internet wireless signal from your router.

2 Function: 
1. Wi-Fi receiver
2. Wi-Fi Transmitter: insert it to the computer which connect with internet cable, than it can be work as a Wi-Fi hot point.
    (But this function can not work directly in Win10, it has to work with some kind of software. Please google the operation details before you order.)
Destop Computer / Notebook Operation System: 
 Windows 10 (32/64bits) 
 Windows 8.1 (32/64bits)
 Windows 8 (32/64bits)
 Windows 7 (32/64bits)
 Windows XP(32/64bits)
Transmit power: 20dBm Maximum
Security features:
WPA-PSK/WPA2-PSK, WPA-PSK / WPA2-PSK data encryption mode, 64/128 bit WEP data encryption mode
Wireless rate: 300Mbps Maximum
Working channel: 1 ~ 13
Frequency Range: 2.4GHz
Antenna: 6dBi (better than the built-in one)