 "Corsair Vengeance - DDR3 8 GB: 2 x 4 GB DIMM 240-pin" " Corsair 240-pin CMZ8GX3M2A1600C9 System Memory (RAM) CDWG.com
"Vengeance Low Profile heat spreaders have a reduced height of 1.03". They're designed for high-performance systems with extra-large CPU coolers, small form factor system builds, or any other space-constrained application where you need high-performance memory but standard Vengeance modules might not fit." 
 "Corsair XMS3 8GB (2x4GB) DDR3 PC3-12800 1600MHz Dual Channel Kit "@en 2x4GB | CMX8GX3M2A1600C9 Novatech"@en
"1600MHz RAM Speed, CAS 9-9-9-24, 1.50-1.65v VDIMM, XMP, Lifetime Warranty"@en 
 Memory Type DDR3 (PC3-12800) Capacity 8GB (2 x 4GB) Tested Speed 1600MHz Tested Latency 9-9-9-24 Tested Voltage 1.50-1.65v Registered / Unbuffered Unbuffered Error Checking Non-ECC Memory Features XMP, XMS3 Heatsink