This item is OEM 


Razer-DeathAdder-Left-Hand-Edition-Gaming-Mouse--_01Razer-DeathAdder-Left-Hand-Edition-Gaming-Mouse--_03Razer-DeathAdder-Left-Hand-Edition-Gaming-Mouse--_04Razer-DeathAdder-Left-Hand-Edition-Gaming-Mouse--_05Razer-DeathAdder-Left-Hand-Edition-Gaming-Mouse--_06