HP A5572-69001 - 128MB ECC high-density SDRAM DIMM memory module - Must be installed in pairs of equal size (256MB kit is A5572A) Retail
HP A5840-69101 - 256MB ECC high-density SDRAM DIMM memory module Board - Must be installed in pairs of equal size (512MB kit is A5840A) Retail
HP A5841-69001 - 512MB ECC high-density SDRAM DIMM memory module - Must be installed in pairs of equal size (1024MB kit is A5841A) Retail
HP A5554-69002 - 128MB ECC high-density SDRAM DIMM memory module - Must be installed in pairs of equal size (256MB kit is A5554A) Retail
HP A5797-69101 - 256MB ECC high-density SDRAM DIMM memory module - Must be installed in pairs of equal size (512MB kit is A5797A) Retail
