OFFTEK 4GB Replacement Memory RAM Upgrade for Gigabyte GA-X58A-UD3R (DDR3-10600 - Non-ECC) Motherboard Memory at Amazon.com
X58A-UD3R: High-End Overclocking on Gigabyte's Entry X58 Platform - Overclockers
Gigabyte Ga-x58a-ud3r Original Motherboard 1366 Pin X58 Desktop Mainboards Support L5639 L5520 Ddr3 Sata Iii Systemboard Used Pc - Motherboards - AliExpress
8GB Kit 2X 4GB Memory for Gigabyte GA-X58A-UD3R Motherboard DDR3-8500 Non ECC DIMM RAM (PARTS-QUICK Brand) at Amazon.com