Download Drivers Acer Aspire One 521 (AO521) for Windows 7 x86 3G Module Driver Date: 2010/06/08 Version: 6.0.1.262 Vendor: Huawei Size: 1.9 MB 3G Module Driver Date: 2010/06/08 Version: 1.0.0.71 Vendor: Ericsson Size: 12.5 MB Audio Driver