Kingston Technology 32GB (1 X 32GB) 1066MHz DDR3 240-Pin Quad Rank Registered ECC Low Voltage DIMM for IBM Servers (PC3 8500) KTM-SX310QLV/32G at Amazon.com
Corsair CMY32GX3M4A1600C9 Vengeance Pro 32GB (4x8GB) DDR3 1600 MHz (PC3 12800) Desktop 1.5V, Black at Amazon.com