Elpida 4GB PC3-12800 DDR3-1600MHz Non-ECC CL11 204pin Memory EBJ40UG8EFU0-G Elpida 4GB 1Rx8 PC3L-12800S-11-12-B4 Laptop memory 4GB Laptop memory 1Rx8 PC3L-12800S-11-12-B4 Used: laptop Computer-Internal-Memory