8GB 2x 4GB 2GB DDR3 PC3-8500U 1066MHz 240Pin Desktop RAM Memory For Crucial LOT | eBay
A-Tech 4GB (2 x 2GB) RAM for HP Compaq 4000 Pro & 6000 Pro - (Small Form Factor & Microtower) - DDR3 1066MHz PC3-8500 Non-ECC DIMM Memory Upgrade Kit at Amazon.com
OWC 2GB PC8500 DDR3 ECC 1066MHz DIMM Memory Compatible with Mac Pro & Xserve 'Nehalem' & 'Westmere' Models (OWC8566D3ECC2GB) at Amazon.com
2GB DDR3 Memory Upgrade for MSI Wind Top AE2050 PC3-8500 204 pin 1066MHz SODIMM RAM (PARTS-QUICK Brand) at Amazon.com