Hi, I'm Jewel with Kingston Technical Support and would like to offer our assistance. Here are the key features for each line:
HyperX - Red
Capacity — up to 8GB (single) and 4GB–16GB (kits)
Frequency speeds — DDR3: 1333MHz–1600MHz
Sleek and aggressive design with bold new color
Intel XMP-ready for easy overclocking (available with selected models)
HyperX - Blu
Capacities up to 16GB (with 1GB, 2GB and 4GB module kits)
Frequency speeds — DDR2 up to 800MHz, DDR3: 1333MHz–1600MHz
New streamlined clipless design
Compatible with Intel XMP auto-overclocking function (available with selected models) and Core i3 processors
The main differences besides color is that HyperX Blu still offers DDR2 modules and HyperX Red offers 8GB individual modules (Blu's largest individual module is 4GB). Either line should have no problem working in your build. Red would only be better if you plan on capping out the amount of RAM installed to 32GB as that would require 8GB modules. If you have any further questions about our products, please feel free to call us at 1-800-435-0640 (USA and Canada only) M - F 6am - 6pm PT and I or another available Technician will assist you.
Thank you for selecting Kingston as your upgrade partner.