HiRO H50003 V92 56K Internal PCI Data Fax Voice Dial Up Internet Modem Windows 8.1 8 7 Vista XP 32-bit 64-bit RoHS Features & Benefits: Support latest V.92 Standard Protocol, PCM Upstream - Max. Data Upload up to 48K, MOH - Receive Phone Call during active internet Easy installation Wizard Plug and Play, Quick & Easy hardware and driver installation, no more hassle, just pop up and go.Fully Compatible with latest Microsoft Windows OS, Windows 8.1, 8, 7, Vista, XP 32-bit 64-bit, 2000, Server 2012 2008 200 Specification: Modem Protocol: ITU-T V.92/K56Flex, ITU-T V.34bis, V.34, V.32bis, V.32, V.22bis, V.22, V.21, V.23 Bell 212A/103, V.80, Fax Compatibility: 14.4 kbps Send / Receive, G3 Compatible, Software Compatibility: AT Command Set Compatible Error Correction: MNP2-4, V.42, Data Compression: MNP5, V.42bis, & V.44, DTE To Modem Data Rate: Max. 115200 bps, Data Interface: PCI, Voice function with Telephone Answering Machine (TAM), Line Interface: RJ-11 Modular Jack