202171-B21 I Open Box HP 2GB 4x512MB SDRAM Memory RDIMM PC1600 ECC 175918-042Technical Information Memory Size 2 GB Memory Technology DDR SDRAM Number of Modules 4 x 512 MB Memory Speed 200 MHz Memory Standard DDR200 PC1600 Error Checking ECC Signal Processing Registered Physical Characteristics Number of Pins 184 pin Form Factor DIMM We ship all products according to manufacturer specifications. If the manufacturer does not include an option as standard with the product (power supply, fan tray etc) we do not either unless