Elpida 4gb (2 x 2GB) 1Rx8 PC3-12800S-11-10-B2 | eBay
2GB 1Rx8 DDR3 SODIMM PC3-10600 1333MHz 204-Pin Non-ECC Unbuffered CL9 1.5V Laptop Memory Module EBJ20UF8BCS0-DJ-F Compatible Replacement Spare Part for Elpida Compatible and Other Systems at Amazon.com