2-Power 2P-604504R-B21, 4 GB, 1 x 4 GB, DDR3L, 1333 MHz, 240-pin DIMM 2-Power 2P-604504R-B21. Component for: PC, Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR3L, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM, CAS latency: 9, ECC