Crucial 64GB (4 x 16GB) 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Desktop Memory Model CT4K16G4DFD8213 Cas Latency: 15 Voltage: 1.2V Multi-channel Kit: Quad Channel Kit Buffered/Registered: Unbuffered Features: Speeds start at 2133 MT/s and faster data rates are expected to be available as DDR4 technology matures Increase bandwidth by up to 32% Reduce power consumption by up to 40% Faster burst access speeds for improved sequential data throughput Optimized for next generation processors and platforms