Razer Nostromo PC Gaming Keypad - Manufacturer Refurbished 16 fully-programmable Hype response gaming buttons are engineered for rapid key actuation and crisp response The Razer Nostromo's all-new configuration software is as easy to use, allowing you to conveniently customize all the buttons with any game command or key binding. The Razer Nostromo's all-new configuration software is as easy to use, allowing you to conveniently customize all the buttons with any game command or key binding Connects to PC with USB 2.0 port 90 Day Warranty