Motorola Surfboard SB5101 Cable Modem - includes: modem, power adapter - in good working condition - $30 firm PRODUCT FEATURES: *USB and Ethernet connectivity to help ensure compatibility with almost any PC or Mac network-ready system *Supports up to 63 users (with additional networking hardware; not included) *No telephone lines needed; always on, always connected *10/100Base-T Ethernet for blazing speed; capable of downloading at speeds up to 100 times faster than a standard 28.8Kbps analog phone modem *Top-mounted standby switch enhances network security *Downstream data speeds up to 38 Mbps *Upstream data speeds up to 30 Mbps *Front-panel status LEDs and user-friendly online diagnostics page for quick and easy troubleshooting *Compatible with Windows, Macintosh and Unix systems *Integrated DOCSIS 2.0 A-TDMA and S-CDMA technology; backwards compatible with existing DOCSIS 1.0 and 1.1 systems *Remote configuration and monitoring from the headend using SNMP and TFTP