RAM & Memory Upgrades
8GB (2 x 4GB) DDR2 667MHz PC2-5300 200-PIN SODIMM MEMORY RAM KIT COMPATIBLE WITH LAPTOPS/NOTEBOOKS
SIZE/CAPACITY: 8GB KIT (2 x 4GB) VOLTAGE/POWER CONSUMPTION: 1.8v CAS LATENCY: CL5 SPEED: PC2-5300 (667MHz) TYPE/INTERFACE: 200-PIN DDR2 SODIMM 200-PIN DDR2 SODIMM
https://www.bizrate.co.uk/ram_memoryupgrades/8gb-2-x-4gb-ddr2-oid35821558385.html