Komputerbay 16GB (4 X 4GB) DDR3 DIMM (240 pin) 2000MHZ PC3-16000 16 GB KIT CL... Komputerbay 16GB (4 X 4GB) DDR3 DIMM (240 pin) 2000MHZ PC3-16000 16 GB KIT CL 9-11-9-29 with Crown Series Heatspreaders for extra Cooling CL 9-11-9-29 Voltage 1.6V Well Tested. Non-ECC Non parity Voltage 1.6V, XMP ready 100% Tested and Verified