This HP® 500660-B21 compatible 4GB DDR3-1066MHz quad rank registered ECC 1.35V 240-pin CL7 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.
WARNING: Products with exposed solder can expose you to lead and lead compounds, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Always wash your hands after handling and avoid inhalation of fumes if heating the solder. For more information go to www.P65Warnings.ca.gov.
Shop with confidence! Provantage is an authorized AddOn dealer.