TP-Link TL-WN821N network adapter

Antenna Qty: 1
Directivity: Omni-directional
Antenna Form Factor: Internal
Type: Network adapter
Form Factor: External
Interface (Bus) Type: USB 2.0
Data Transfer Rate: 300 Mbps
Data Link Protocol: IEEE 802.11n (draft 2.0), IEEE 802.11b, IEEE 802.11g
Wi-Fi Bands: 2.4 GHz
OS Required: Microsoft Windows Vista / 2000 / XP