HP DL980 4GB (1x4GB) Single Rank x4 PC3-10600 (DDR3-1333) Reg CAS-9 Memory Kit
HPE 4GB DDR3-1333, 4 GB, 1 x 4 GB, DDR3, 1333 MHz, 240-pin DIMM
HPE 4GB DDR3-1333. 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, CAS latency: 9, ECC