Lenovo 46R3323 Eplida 4GB 2 x 2GB PC3-8500U DDR3 1066 Non-ECC Unbuff Memory Kit Manufacturer: Elpida EBJ21UE8BDF0-AE-F Lenovo Part Number: FRU 46R3323 Memory Type: DDR3 SDRAM Capacity: 4GB 2 x 2GB Bus Type: PC3-8500U