Crucial 16GB Single DDR4 2133 MT/s (PC4-17000) DIMM 288-Pin Memory - CT16G4DFD8213 Cas Latency: 15 Voltage: 1.2V Buffered/Registered: Unbuffered Features: CT16G4DFD8213 is a 16GB DDR4 desktop module that operates at speeds up to 2133 MT/s and has a CL15 latency. It is an Unbuffered Non ECC DIMM. It conforms to the industry standard DDR4 UDIMM layout of 288 pins and is compatible with systems that take DDR4 2133MT/s UDIMM memory.