8GB DDR3, 240-pin DIMM, 1600MHz, Registered (buffered)
HP 733020-581, 8 GB, DDR3, 1600 MHz, 240-pin DIMM
HP 733020-581. Internal memory: 8 GB, Internal memory type: DDR3, Memory clock speed: 1600 MHz, Memory form factor: 240-pin DIMM, CAS latency: 11