Feature: 1. The maximum speed can up to 56Kbps. 2. With Conexant chip, comprehensive function and stable performance. 3. Support own fax software and aofax,bitware,winfax and so on, EastFax is not included. (Fax software should download by yourself.) 4. Supports for Windows 98/98SE/ME/2000/XP/Vista/Win7 32-/64-bit /Win8 8.1/Win 10. (Most Win7 can automatically recognize and install the drive.) 5. Suitable for office use with comprehensive function and stable performance. Specification: Very useful USB modem. Mostly used for fax, dial-up Internet access. Suitable for office use with comprehensive function and stable performance. Features: The maximum speed can up to 56Kbps. With Conexant chip-CX93010, comprehensive function and stable performance. Support own fax software and aofax,bitware,winfax and so on, EastFax is not included. (Fax software should download by yourself.) Supports for Windows 98/98SE/ME/2000/XP/Vista/Win7 32-/64-bit /Win8 8.1/Win 10. (Most Win7 can automatically recognize and install the drive.) Specifications: Chipset: CX93010 Item Weight: 32g / 1.13oz Package Weight: 49g / 1.73oz Item Size: 7.5 * 2.8 * 2cm / 2.95 * 1.10 * 0.79in （L * W * H） Package Size: 18 * 12 * 2cm / 7.09 * 4.72 * 0.79in （L * W * H) Package List: 1 * Modem 1 * Software Driver 1 * Telephone Cable Package List: 1 * Modem 1 * Software Driver 1 * Telephone Cable