Dell 452-BBQN Graphics Amplifier with System Bus Extender for Alienware 13/15/17 facebook pinterest Purpose: PC, Color of product: Black. Product Type: System bus extender Output power: 460W Dell Alienware Graphics Amplifier System bus extender 460 Watt for Alienware 13 15 15 R2 17 17 R3 452BBQN Laptops Laptop Docking Stations Lowest Price: £168.65 Buy from Amazon