4GB Quad Rank (PC3-8500), 1066 MHz
HPE 4GB Quad Rank (PC3-8500), 4 GB, 1 x 4 GB, DDR3, 1066 MHz
HPE 4GB Quad Rank (PC3-8500). Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR3, Memory clock speed: 1066 MHz