Manufacturer OEM Part Numbers: 4.0G-PC3-10666ER-SRank Module Form Factor: Server and Workstation Connection: 240 pin DIMM Product Type: PC3-10666 Speed Rating: DDR3-1333 (1333Mhz) Units included in price: one Total Capacity: 4GB MFG Code: 4.0G-PC3-10666ER-SRank ALT SKU: CTN SKU: BUL We generally ship one of these brands: