Dataram 4GB DDR3-1333 memory module 1 x 4 GB 1333 MHz ECC

Dataram 4GB DDR3-1333. 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, ECC