Ballistix Sport LT 4GB Single DDR4 2666 MT/s (PC4-21300) SR x8 DIMM 288-Pin Memory - BLS4G4D26BFSE (Red) Cas Latency: 16 Voltage: 1.2V Timing: 16-18-18 Buffered/Registered: Unbuffered Heat Spreader: Yes Color: Red Features: BLS4G4D26BFSE is a 4GB DDR4 desktop module that operates at speeds up to 2666 MT/s and has a CL16 latency. It is an Unbuffered DIMM. It conforms to the industry standard DDR4 UDIMM layout of 288 pins and is compatible with systems that take DDR4 2666MT/s UDIMM memory.