http://www.amazon.co.uk/Crucial-BLS2CP4G3D1609DS1S00CEU-Ballistix-240-pin-PC3-12800/dp/B006YG94Y2/ref=sr_1_3?ie=UTF8&qid=1375468404&sr=8-3&keywords=ddr3
Crucial BLS2CP4G3D1609DS1S00CEU Sport 8GB Kit (4GBx2), Ballistix 240-pin DIMM, DDR3 PC3-12800 Memory Module
£53.99