T-Mobile Speedstick LTE. Data network: 3G, 4G, EDGE, GPRS, GSM, HSPA, HSPA+, UMTS bands supported: 2100 MHz, GSM bands supported: 850, 900, 1800, 1900 MHz. Colour of product: White. Width: 31.5 mm, Depth: 92 mm, Height: 14.4 mm. Compatible operating systems: Windows 7 Windows Vista Windows XP SP3 Mac OS X 10.6x, 10.5x, 10.4.9