The Samsung M393B5170GB0-CH9 is available from Calhoun Technologies. Calhoun Tech can help your company save up to 80% on IT Hardware. Manufacturer: Samsung Part Number: M393B5170GB0-CH9 Details: Samsung M393B5170GB0-CH9 4 GB DDR3 SDRAM 1333 MHz DDR3-1333/PC3-10600 ECC Registered 240-pin DIMM