Cisco 16GB DDR4 SDRAM Memory Module - For Server - 16 GB (1 x 16GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz - CL19 - 1.20 V - ECC - Registered - 288-pin - DIMM Allow convenient and fast access to the stored information your computer is actively using for maximum efficiency Up to 2666 MHz speed with registered signal for playing the latest games and using heavy software DIMM 16 GB bar will run multiple applications together and enhance your computer's performance DDR4-2666/PC4-21300 interface synchronizes electrical and clock signals for an efficient data transfer rate 1 x 16GB modules for dependable storage efficiency and maximum convenience 288-pin for faster, dependable performance and better access to data and information CL19 CAS latency for reliable, fast response and improved performance Server device support for your ram module to allow maximum efficiency and dependability DIMM form factor with 288-pin and 16 GB memory size effectively lessens the electrical load on the memory controller to allow maximum feasibility Registered signal processing allows higher accuracy and enhanced ram module performance