Axiom 4GB DDR3-1333 Low Voltage ECC RDIMM for HP Gen 8647871-B21, 687458-0014 GBDDR3 SDRAM1333 MHz DDR3-1333/PC3L-106001.35... 647871-B21-AX - Corporate Armor
LOT 1GB 2GB 4GB 8GB DDR2 DDR3 1333 1600Mhz Desktop Memory DIMM Memory New | eBay
Crucial Single 4GB DDR3 1333 MT/s (PC3-10600) Notebook Module, CT51264BD1339 at Amazon.com