I purchased this as a spare, but no longer need it, so I'm putting it up for sale. Product Name: Logicool G600 / G600t MMO Gaming Mouse Product Description: This is the Logicool (Logitech) G600 (G600t) gaming mouse. It's a multi-button mouse designed for MMOs, featuring 20 programmable buttons. It's a popular model for MMORPGs and improving work efficiency. The G600 and G600t are different names for the same model, with nearly identical functions and performance. This is the Logicool G600t gaming mouse, which is becoming less common in the market.