The listing, Modem Never Opened New Motorola has ended.
This is a Motorola Surfboard Cable Modem the box is factory sealed, never opened.
Side of the box says: What's included:
Motorola SB5105 SURFboard Cable Modem
Installation CD-ROM with USB drivers
Power Adapter
Ethernet and USB cables
Quick start guide
System Requirements:
Minimum 486/66 (pentium Processor) or MAC compatible CPU
CD Rom Drive
10/100 Base-T or USB connection
Ethernet connection compatible with windows 98SE/2000/NT/Me/XP; Mas OS8 or higher
Feel free to ask me questions but I can't tell you anymore than what the box says
Here's a link to the motorola page that talks about it http://www.motorola.com/Consumers/US-EN/Consumer-Product-and-Services/Cable-Modems-and-Gateways/SURFboard-Cable-Modem-SB5101-US-EN