49Y1394, 4GB, DDR3, RDIMM, ECC, 1x 4GB, 1.35V, CL9, 1333MHz
IBM 49Y1394, 4 GB, 1 x 4 GB, DDR3, 1333 MHz
IBM 49Y1394. Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR3, Memory clock speed: 1333 MHz, CAS latency: 9, ECC