Corsair TWIN2x2048-6400C5C 4GB ?

42 Quid O.N.O Corsair TWIN2x2048-6400C5C 4GB 800MHz C5 DDR2 Memory Kit Product Description 2GB XMS Memory module for dual channel systems, 800MHz, 5-5-5-18, 1.8V Key Features Guaranteed to work on all dual channel Intel and AMD platforms XMS heat spreader World famous Corsair reliability and performance Package Contents One 2GB memory module System Requirements Designed for use with all DDR2 motherboards with two memory channels As New