Manhattan Modem (154109) Easy USB installation No external power supply needed Quick connect, auto dial/answer, tone/pulse dialing & improved download speeds Easy USB installation - no external power supply needed Quick Connect, auto dial/answer, tone/pulse dialing and improved download Supports Digital Telephone Answering Machine (TAM) Supports ITU-T and Bell standards; data speeds: 300 bps - 56 Meets V.29 and Fax Group III, Class 1; fax speeds: 2400 - 14