I have two 4GB SODIMM modules for a total of 8GB. These are brand new, but unfortunately my system needs 7-7-7-20 timing and these are 9-9-9-24. These should work in most laptops, but please double check at
http://www.corsair.com/en/learn_n_explore/ Asking 0.4 BTC for the pair, including shipping within the US. Please inquire about shipping elsewhere. Thanks for looking.
Corsair CMSO4GX3M1A1333C9
Specs:
Memory Configuration: Dual Channel Memory
Type: DDR3
Package - Memory Pin: 204
Package - Memory Format: SODIMM
Tested Voltage: 1.5
SPD Voltage: 1.5
Speed Rating: PC3-10600 (1333MHz)
SPD Speed: 1333MHz
Tested Speed: 1333Mhz
Tested Latency: 9-9-9-24
SPD Latency: 9-9-9-24
Product page:
http://www.corsair.com/en/corsair-memory-4gb-ddr3-sodimm-memory-cmso4gx3m1a1333c9.html