D-Link DWM-222 4G LTE USB Adapter. Device type: Cellular network modem, Market positioning: Portable. Data network: LTE, 2G standards: Edge, GPRS, GSM, 3G standards: DC-HSPA+, HSPA, UMTS, WCDMA. Compatible memory cards: MicroSD (TransFlash), Maximum memory card size: 32 GB. Windows operating systems supported: Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64,..., 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..., Certification: RoHS, CE, WHQL. Weight: 33 g, Dimensions (WxDxH): 34 x 103 x 11.5 mm