Huawei E3276. Device type: Cellular network modem, Market positioning: Portable. Data network: Edge, GPRS, GSM, HSPA+, HSUPA, LTE, UMTS. Compatible memory cards: MicroSD (TransFlash). Windows operating systems supported: Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium..., Mac operating systems supported: Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion. Weight: 1.76 oz (50 g), Dimensions (WxDxH): 1.26 x 0.551 x 3.62" (32 x 14 x 92 mm)