OCZ OCZ3RPX1333EB2GK DDR3 PC3-10666 1333 MHz ReaperX HPC Enhanced Bandwidth 2 GB Dual Channel Memory Kit ReaperX HPC Heatsink/1.9V EVP 6-5-5-20/CAS-TRCD-TRP-TRAS) 1333MHz DDR3/Unbuffered 1.85 Volts/240 Pin DIMM