802.11n (Wi-Fi 4), often backwards compatible with 802.11a/b/g.
Broadcom Wireless LAN Driver (802.11a/b/g ... - Lenovo Support broadcom 80211n network adapter driver windows 7 64 bit 11
Windows 7 (specifically SP1 64-bit versions). 802.11n (Wi-Fi 4)
802.11n (Wi-Fi 4), often backwards compatible with 802.11a/b/g.
Broadcom Wireless LAN Driver (802.11a/b/g ... - Lenovo Support
Windows 7 (specifically SP1 64-bit versions).