Lenovo 89Y9224 4GB PC3-10600U DDR3 1333 NonECC Unbuffered Desktop Memory RAMAXEL Brand: Ramaxel RMR1870EC58E9F-1333 Lenovo Part Number: FRU 89Y9224 Capacity: 4GB Type: 240-Pin DDR3 SDRAM Speed: DDR3 1333 (PC3 10600)