4GB DDR3 PC310600R-9 1333MHz 240pin ECC Buffered HP 500203-061 *NOT FOR DESKTOPS* Go to amazon.com Related posts Thing need consider when find ddr3 1333 ecc? FeatureProliant MemoryElectronics > Electronics Accessories > Memory > RAM Description500203-061 HP 4GB (1x4GB) PC3-10600 RDIMM