Proline - DDR3 - module - 4 GB - DIMM 240-pin - 1333 MHz / PC3-10600 - unbu

This HP 500672-B21 compatible 4GB DDR3-1333MHz dual rank unbuffered ECC 1.5V 240-pin CL9 factory original UDIMM is 100% guaranteed to be compatible with your system and to work right the first time. All of the server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung, Micron, or Hynix). The products are also guaranteed by federal law to not affect or void OEM warranties.