1[Backward Compatibility] Continues to work on the 5.0GHz frequency band to ensure backward compatibility, and the data transmission channel will be greatly expanded. 2[High Transmission Speed] The wireless card has excellent performance and high transmission speed. 3[Dual Band] Made of high quality materials, this wireless card is durable and uses dual band 2.4GHz 5GHz. 4[PCIE Interface] Using sophisticated production technology, the wireless card PCIE X1 X4 X8 X16 graphics slot universal. 5[BT 4.2] Adopting BT 4.2, can be connected to laptops, tablets, keyboards, mice, headsets and other devices to achieve wireless connection and file transfer. Item Type: Wireless Card Chip Model: For 8260AC Wireless Frequency: 2.4GHz 5GHz Dual Band Transmission Speed: 2.4G: 300M, 5G: 867M BT: BT 4.2 Interface: PCIE 1 xWireless Card 2 x Antennas 1 x Half Height Board 1 x BT Cable 2 x Screws 1 x Disk Drive