My brother gave me a modem to use at the apartment to save 3 bucks on renting one from Comcast, but now that I'm here and on FiOS I don't need it, so I figure why not sell it to someone who may want it. Especially if they've been having modem problems through comcast. It's a black Motorola SURFboard modem Model: SB5100 and for me it worked flawlessly. This is for a CABLE connection only. You will have to call your provider to have them come get the modem you are paying for, and install this MAC address into your customer profile. The modem comes with it's power adapter, of course, but I will not provide any Cat5e patch cables, USB, or COAX cables. CUSTOMER S/N, S/N, HFC MAC ID, & USB CPE MAC ID are all listed as well as bar coded on the bottom of the modem. I don't have them written down anywhere, so once this is gone you are the sole owner of all these codes. Price: $24 shipped. Through comcast, the modem will pay for itself after 8 months of usage.