Fujitsu S26391-F791-L540, 4 GB, 1 x 2 GB, DDR3, 1066 MHz, 204-pin SO-DIMM
Fujitsu S26391-F791-L540. Internal memory: 4 GB, Memory layout (modules x size): 1 x 2 GB, Internal memory type: DDR3, Memory clock speed: 1066 MHz, Memory form factor: 204-pin SO-DIMM