From Acer: WLan Driver 802.11n Rel. 4.80.28.7.zip package supports the Broadcom 802 driver models. This package supports the following driver models:
Broadcom 802.11b Network Adapter
Broadcom 802.11g Network Adapter
Broadcom 802.11a Network Adapter
Broadcom 802.11 Multiband Network Adapter
Broadcom 802.11n Network Adapter