Transmission rate 150Mbps Working frequency band: 2.4G+4.0 Bluetooth Wireless standards: IEEE 802.11g, IEEE 802.11b, IEEE 802.11n Interface type: NGFF M2 Wireless protocol: 802.11n Product parameters: Product model: QCNFA335 Lenovo Edition Support system: Win7, Win8, Win10 Compatible machine type: E550 G40-30, G40-45, G40-70, G40-70M G50-30, G50-45, G50-70, G50-70M Z40-70 Z50-70 B50 Lenovo Flex 2 15D Lenovo Xiaoxin v1000 colour:green material:PCB size:1.6 x 3cm Package Contents: 2 x Wireless network card Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.