Patriot Viper 3 Series Black Mamba Extreme Performance DDR3 4GB 1600Hz Desktop Memory Module (PV34G160C0) at Amazon.com
Amazon.com: Patriot 16GB(2x8GB) Viper III DDR3 1600MHz (PC3 12800) CL9 Desktop Memory with Black Mamba Heatsink - PV316G160C9K : Everything Else
A-Tech 32GB KIT (2 x 16GB) for Asus Z Motherboard Series Z8NA-D6, Z8NA-D6C, Z8NH-D12 DIMM DDR3 ECC Registered PC3-12800 1600MHz Dual Rank Server RAM Memory at Amazon.com
Patriot PSD38G16002H Signature 8GB DDR3 CL11 PC3-12800 1600MHz DIMM with Heatshield at Amazon.com