379300-B21 4GB (2x2GB) HP/Compaq Proliant BL25P/BL35P/DL385 184-pin PC3200 Registered ECC DDR DIMM Memory Kit 3rd Party by Gigaram 4GB (2x2GB) HP/Compaq Proliant BL25P/BL35P/DL385 184-pin PC3200 Registered ECC DDR DIMM Memory Kit (p/n 379300-B21) Equivalent part numbers: 379300-B21, PP656A, KTH-DL385/4G, EA836AA, 2pcs 373030-051 The 379300-B21 carries a Gigaram lifetime exchange or repair warranty against manufacturing defects. Please check your machine specs.