Proline - DDR3 - module - 16 GB - DIMM 240-pin - 1066 MHz / PC3-8500 - registered

This HP 500666-B21 compatible 16GB DDR3-1066MHz quad rank registered ECC 1.35V 240-pin CL9 factory original RDIMM is 100% guaranteed to be compatible with your system and to work right the first time. All of our server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung , Micron , or Hynix ). Our products are also guaranteed by federal law to not affect or void OEM warranties.