This is the ELECOM USB numeric keypad, model TK-TCM0115V/RS. It connects via USB and is convenient for tasks that require a lot of numerical input. I used it with a laptop. It has been stored in its original box and is in good condition, but please understand that it has been stored at home. [Brand] ELECOM [Model Number] TK-TCM0115V/RS [Color] Black [Connection Type] USB Thank you.