External USB 56K V.92 V.90 Dial Up Fax Modem For Win XP/VISTA7/8/10 Features: The maximum speed can up to 56Kbps. With Conexant chip, 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: 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)