Dell SNP531R8C/4G Dell 4GB DDR3 SDRAM Memroy Module - 4 GB - DDR3 SDRAM - 1600 MHz - Non-ECC - Unbuffered - DIMM

Memory Size: 4 GB Memory Technology: DDR3 SDRAM Memory Speed: 1600 MHz Error Checking: Non-ECC Signal Processing: Unbuffered Form Factor: DIMM. .