Mimgo Store USB 56K External 2 Dual RJ11 Ports Dial Up Voice Fax Data Modem for Windows 7 8 Full-duplex 56Kbps / data / fax Data Mode:Support V.44,V.42bisand MNP5 data compression Fax Mode capabilities: Group 3, class 1, Data mode capabilities: V.92, V.90 56 Kbps, Error Correction capabilities: V.42, MNP4-2, Supports Windows 98/ 98SE/ ME/ 2000/ XP/Vista/Win7/Win8 8.1/Win 10 Package includes: 1Pc x USB 56K Fax Modem 1Pc x Driver CD. 1Pc x Telephone cable