Mushkin Enhanced Silverline 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model 996770 Cas Latency: 9 Voltage: 1.5V Multi-channel Kit: Dual Channel Kit Timing: 9-9-9-24 Heat Spreader: Yes Features: Compatible Timings This product is programmed to use timings that offer maximum compatibility with your system and original memory