This listing is for ONEVSCom Serial Gear USBG-8COM RS-232 Adapter 8-Port with a 10' USB Cable. Used and in perfect working order. Comes as shown and described. You will need a 5V DC power supply, Center pin pos +... Which can be found on Amazon for $6. I will give it my own 30 Day No DOA Warranty. Buyer pays $5 S/H via USPS Ground Advantage. Buy with confidence from Esoteric Specialties!