I purchased this a few years ago but it didn't suit me, so I've been storing it. I briefly tested it and confirmed that the lighting and the main keys are responsive. Some of the pads show signs of deterioration. I haven't performed any cleaning beyond a surface wipe. I've only used it about twice, but it's old, so please only purchase if you understand this. - Model: TARTARUS V2 - Type: Mecha-Membrane Gaming Keypad - Number of Buttons: 20 - Connection: USB - Features: RGB Lighting - Included: Instruction manual, stickers Thank you for looking.