Hp 4gb ddr4 2133 mhz pc4 17000 dimm 288 pin cl15 memory maximize your business pc performance with hp memory upgrading your memory is a cost effective way to boost your system performance without having to upgrade your processor specifications compatibility information designed forhp elitedesk 800 g2 65533 hp prodesk 400 g3 490 g3 600 g2 general capacity4 gb general oem manufacturer equivalent part numberhp p1n51aa general upgrade typesystem specific manufacturer warranty