AddOn Networks 708633-B21-AM memory module 4 GB 1 x 4 GB DDR3 1866 MHz ECC

This HP® 708633-B21 compatible 4GB DDR3-1866MHz Dual Rank Registered ECC 1.5V 240-pin CL13 factory original RDIMM is 100% guaranteed to be compatible with your system and to work right the first time. Adding additional memory is the best way to increase the performance of your system. All our memory is built to strict JEDEC standards to meet or exceed the Tier 1 OEM's factory requirements. Our products are also guaranteed by federal law to not affect or void OEM warranties.