OCZ OCZ2T800C44GK 4 GB (2 x 2 GB) DDR2 800MHz Titanium Series Memory Kit 800MHz DDR2/ Unbuffered 4-4-4-15/(CAS-TRCD-TRP-TRAS) Titanium XTC* Heatspreader/ 2.2 Volts /240 Pin DIMM 2.25V EVP**/EPP-Ready Available in 2GB(2048MB) /Modules and 4GB(2x2048MB) Dual Channel Kits