CORSAIR Vengeance 4GB 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ4GX3M1A1600C9 Cas Latency: 9 Voltage: 1.5V Timing: 9-9-9-24 Buffered/Registered: Unbuffered Heat Spreader: Yes Color: Black Features: For AMD and Intel Dual and Triple processors. Operates in Single Channel mode when installed individually. Vengeance heat spreader for styling and performance Intel XMP (Extreme Memory Profile) Support