1GB DDR3, 240-pin DIMM, 1333MHz, Unregistered (unbuffered)
HP 497156-W01, 1 GB, DDR3, 1333 MHz, 240-pin DIMM
HP 497156-W01. Internal memory: 1 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM, CAS latency: 9