JEDEC Standard 4GB DDR3-1600MHz Unbuffered Single Rank x8 1.5V 240-pin CL11 UDIMM
AddOn Networks AA1600D3SR8N/4G, 4 GB, DDR3, 1600 MHz, 240-pin DIMM
AddOn Networks AA1600D3SR8N/4G. Internal memory: 4 GB, Internal memory type: DDR3, Memory clock speed: 1600 MHz, Memory form factor: 240-pin DIMM, CAS latency: 11