 "Corsair XMS3 - DDR3 4 GB: 2 x GB DIMM 240-pin" " Corsair 240-pin TW3X4G1333C9A System Memory (RAM) CDW.com
"The XMS3 family is Corsair's mainstream line of performance DDR3 memory. These modules allow users to experience outstanding memory performance and stability." 
 "Corsair Vengeance CMZ8GX3M1A1600C10 8GB 1X8GB DDR3-1600 CL10-10-10-27 240PIN Single Memory Module" DDR3 1600MHz CL10 - NCIX"
 Quick Specs: CAS Latency CL10 Compatibility Desktop Error Checking Non-ECC Number of Modules 1 x 8 GB Number of Pins 240-pin Signal Processing Unbuffered Limited Warranty Lifetime Form Factor DIMM Memory Speed 1600 MHz Memory Size 8 GB Memory Technology DDR3 SDRAM Memory Standard DDR3-1600/PC3-12800 ProductId 1021038853