StarTech USB56KEM3 External V.92 56K USB Fax Modem Dial up Data Modem Compliant with common data/fax communication standards for near universal compatibility Compact, portable design makes the USB Fax Modem easy and convenient to use in tight spaces or while traveling Powered directly from the USB port, so no external power adapters are required Compatible with V.92, V.90, and V.34 data modes Compatible with T.31, V.17, V.29, V.27,and V.21 Fax modes Data transfer rates up to 56Kbps (down) and 48Kbps (up) Powered directly from the host USB port Telephone Answering Machine (TAM) support