Wireless N PCI adapter TL-WN851ND allows you to connect a desktop computer to a wireless network and access high-speed Internet connection. Comply with IEEE 802.11n, they provide wireless speed up to 300 Mbps, which is beneficial for the online gaming or even HD video streaming. Device Type: Network adapter Form Factor: Plug-in card Interface (Bus) Type: PCI Dimensions (WxDxH): 0.9 in x 5.2 in x 4.8 in Data Link Protocol: 802.11b, 802.11g, 802.11n Data Transfer Rate: 300 Mbps Frequency Band: 2.4 GHz Compliant Standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n System Requirements: Microsoft Windows Vista / 2000 / XP, Microsoft Windows 7 (32/64 bits) Microsoft Certification: Compatible with Windows 7 Device Type: Network adapter Form Factor: Plug-in card Interface (Bus) Type: PCI Connectivity Technology: Wireless Data Link Protocol: 802.11b, 802.11g, 802.11n Spread Spectrum Method: OFDM Data Transfer Rate: 300 Mbps Line Coding Format: DBPSK, DQPSK, CCK, 64 QAM, 16 QAM, OFDM Frequency Band: 2.4 GHz Features: 2T2R MIMO technology Compliant Standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n Antenna: External detachable Antenna Qty: 2 Directivity: Omni-directional Gain Level: 2 dBi Compatible Slots: 1 x PCI Encryption Algorithm: AES, 128-bit WEP, 64-bit WEP, WPA, WPA2, WPA-PSK, WPA2-PSK Compatible with Windows 7: Compatible with Windows 7 software and devices carry Microsoft’s assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7. Compliant Standards: FCC, RoHS Software Included: Drivers & Utilities OS Required: Microsoft Windows Vista / 2000 / XP, Microsoft Windows 7 (32/64 bits) Width: 0.9 in Depth: 5.2 in Height: 4.8 in Min Operating Temperature: 32 °F Max Operating Temperature: 104 °F Humidity Range Operating: 10 - 90% (non-condensing)