Komputerbay 2GB DDR3 DIMM (240 pin) 1866MHZ PC3-14900 PC3-15000 CL 9-11-9-29 with Black Heatspreaders For Extra Cooling - XMP Ready Komputerbay 2GB DDR3 DIMM (240 pin) 1866MHZ PC3-14900 PC3-15000 CL 9-11-9-29 with Black Heatspreaders For Extra Cooling - XMP Ready Well Tested. Non-ECC Non parity Voltage 1.5V Lifetime Warranty Comes with heatspreader for extra cooling