New in original factory box or package.Box or package may not be in the best condition. Have Question Just Ask? The General Instrument® SURFboard® SB3100 cable modem enables you to connect your home or business computer to a DOCSIS-compliant data network. It provides high-speed access to the Internet and other online services. The SB3100 transmits and receives data at much higher speeds than traditional telephone or ISDN modems. Unlike a telephone modem, the SB3100 is always online. Just open your browser and surf.INSTALLATION Service provider TV cable SB3100 Crossover Ethernet cable Ethernet hub Computer Computer For Multiple Users The SB3100 can easily serve as a gateway to the Internet for up to 32 users. The users must be on the LAN and the SB3100 must be attached to the LAN and the cable system. The network administrator at your service provider configures your modem for multiple users. Standard Ethernet cable Computer