AddOn AM400D2R3/4G x1 JEDEC Standard Factory Original 4GB DDR2-400MHz Registered ECC Dual Rank 1.8V 240-pin CL3 RDIMM

This Industry Standard 4GB () DDR2-400MHz dual rank registered ECC 1.8V 240-pin CL3 factory original RDIMM kit 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.