Edge 4GB (1x4GB) PC3-12800 DDR3 ECC, 4 GB, 1 x 4 GB, DDR3, 240-pin DIMM
Edge 4GB (1x4GB) PC3-12800 DDR3 ECC. Internal memory: 4 GB, Memory layout (modules x size): 1 x 4 GB, Internal memory type: DDR3, Memory form factor: 240-pin DIMM, ECC