U.S. Robotics 5637 56K USB Hardware Fax Modem - USB - 1 x RJ-11 Phone Line - 56 Kbps

DTMF / Tone Generation and Reporting Fast Connect (V.22) allows 1200 bps connections without error control in about 3 seconds, making this modem ideal for POS and ATM transactions that require lightning fast connections. Compatible with most major operating systems, Windows, Linux and Macintosh including Windows Server 2012 R2, Windows 10, Sierra, El Capitan, and Yosemite- 32 and 64 bit. Configurable 8 or 16 bit voice compression Simple USB Plug and Play installation Perfect for creating a Telephone Answering Device (TAD) Permanently store preferred modem default settings Supports group faxing and timed faxing