Lenovo 16GB DDR4 2666MHz ECC RDIMM Memory - For Server, Desktop PC - 16 GB (1 x 16GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Registered - 288-pin - DIMM

Up to 2666 MHz speed with CL19 latency for smooth computer performance 16 GB capacity is enough to execute all memory hungry programs simultaneously 288-pin-pin DDR4-2666/PC4-21300 operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation