G.Skill F2-6400CL6D-8GBMQ 8GB (2 x 4GB) 240-Pin DDR2 SDRAM DDR2 800 MHz (PC2 6400) Dual Channel Kit Desktop Memory 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Tested Latency: 6-6-6-18-2N, Tested Voltage: 1.80v, 8GB (2 x 4GB) Dual Channel Kit Unbuffered Heat Spreader: yes