YSTD WiFi Link 6205 Card 60Y3253 For Lenovo Intel T420 T420s T520 T520s X100E X120E Card Type:PCI Express Half-Mini Card Wireless Protocol(s):802.11a, 802.11b, 802.11g, 802.11n Wi-Fi Performance:300 Mbps Chipset:Intel Dimensions(H x W x D):26.8mm x 30.00mm x 2.4mm