Razer DeathStalker Expert Gaming Keyboard (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty Fully programmable slim chiclet keycaps with green LED backlit keys Fully programmable keys with on the fly macro recording, 10 key-roll over in gaming mode Anti-ghosting capability for up to 10 simultaneous key presses Razer Synapse 2.0 enabled