Any details of the Netgear CM1100 cable modem you can easily search for yourself, but it is a quality DOCSIS 3.1 that is compatible with pretty much all of the major cable internet providers (Cox, Comcast, etc. -- BUT CHECK WITH YOUR PROVIDER BEFORE YOU PURCHASE JUST IN CASE!!!).
The modem of course includes the original power supply, but I am including an upgraded ethernet cable (CAT-7).
Shipping is a flat $10 and will be via UPS, USPS, or FedEx -- it really depends on where I'm going the day I need to ship this one.
If you have any questions, please ask them BEFORE you bid/buy/enter into the eBay contract, please!!
Thank you, and good luck :)