CMS 16GB (4X4GB) DDR2 5300 667MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Proliant Bl45P Ddr2 5300 G2 Ecc Reg for Server Only - B50 at Amazon.com
CMS 16GB (4X4GB) DDR2 5300 667MHZ ECC Fully BUFFERED DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Xw8400 Series for Server Only - B104 at Amazon.com
Corsair CMK4GX4M1A2400C16 Vengeance LPX 4GB (1 x 4GB) DDR4 DRAM 2400MHz (PC4-19200) C16 Memory Kit, Black