D-Link AirPlus G DWL-G520+A Wireless PCI Adapter, with 802.11g 54M wireless standard, compatible with 802.11b, throughput of up to five times the normal 802.11b products, 64/128/256 bit WEP and WPA support for the latest wireless security standards.
Please note the REVISION of your product to select the correct download. Your product revision is indicated on the sticker at the bottom of the unit, here is how to check
For DWL-G520+A:
Device Name: D-Link AirPlus G DWL-G520+A Wireless PCI Adapter
Hardware ID: PCI\VEN_168C&DEV_001A&SUBSYS_3A231186
DWL-G520+A Windows 2000, XP 32bit, Vista 32bit Driver, Utility: Download
DWL-G520+A Windows XP 64bit, Vista 64bit Driver, Utility: Download
Download DWL-G520+A Linux Driver: DWL-G520+A_G650+A Linux driver v1.1.1.0.zip
Release Note: DWL-G520+A_G650+A v1.1.1.0 Release note.txt
For DWL-G520+A Rev.C:
Device Name: D-Link AirPlus G DWL-G520+A Wireless PCI Adapter(rev.C)
Hardware ID: PCI\VEN_1814&DEV_0302&SUBSYS_3C111186
Download DWL-G520+A Rev.C Windows 2000, XP, Vista, Win7 Driver, Utility: Download
Release Note: DWL-520+A C2_Utility_ReleaseNote for V5.30.doc