4GB DDR3, 240-pin DIMM, 1333MHz, Registered (buffered)
Micron MT18KDF51272PZ-1G4, 4 GB, 1 x 4 GB, DDR3, 1333 MHz, 240-pin DIMM
Micron MT18KDF51272PZ-1G4. Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM