This is the Razer Spectre Starcraft 2 Heart of the Swarm Cable Gaming Mouse RZ01-00430100-R3M2. Level up your game performance by adding this Razer USA Spectre cable gaming mouse to your arsenal. This mouse has five programmable buttons, so you can set up your command menu exactly the way you need it, saving you precious seconds. It's extremely responsive, which spares you the frustration of lag or missed commands. The cord transmits input and delivers power, so you won't suddenly find yourself with a dead battery or lost connection.