Alternate color or configuration shownAddOn Networks 4GB DDR3 memory module 1 x 4 GB 1333 MHz ECCAddOn Networks 4GB DDR3. Component for: PC/server, Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, Memory form factor: 240-pin DIMM, CAS latency: 9, ECCManufacturer: AddOn Networks SKU: 4411929Manufacturer part number: FX621AA-AMUPC: 0821455544990MSRP: $71.50Price: $50.27 Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendThis HP FX621AA compatible 4GB DDR3-1333MHz dual rank registered ECC 1.5V 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.Products specificationsAttribute nameAttribute valueWidth5.25"Depth1.18"Height0.201"FeaturesInternal memory4 GBInternal memory typeDDR3Memory clock speed1333 MHzComponent forPC/serverMemory form factor240-pin DIMMBuffered memory typeRegistered (buffered)CAS latency9Memory voltage1.5 VMemory layout (modules x size)1 x 4 GBMemory ranking2ECCYesPackaging dataPackage width6.5"Package depth2"Package height0.5"Package weight12 ozProduct tags (50740)