CORSAIR CMV4GX3M1A1333C9 Corsair 4GB (1x4GB) DDR3 1333 MHz (PC3 10666) Desktop Memory 1.5V 1333 MHz performance Latency of 9-9-9-24 to maximize system performance 100% Guaranteed compatibility with all Intel and AMD DDR3 platforms DDR3 DIMM for Intel and AMD platforms for system builds and upgrades Backed by Corsair's Lifetime Warranty and excellent customer support Memory Type: DDR3; Speed: 1333MHz