Up to 2666 MHz speed with registered signal and CL19 latency for playing the latest games and using heavy software Whether you are playing games, using heavy loaded OS or video editing software, the 64 GB of memory will make them run in a flash Enables efficient and smooth execution of all your heavy-duty applications with maximum productivity Registered signal processing allows high speed and accuracy to allow maximum reliability CL19 CAS latency for reliable, fast response and improved performance 288-pin for optimal performance and maximum reliability DIMM form factor with 288-pin and 64 GB memory size for enhanced performance and speed to allow maximum usability DDR4-2666/PC4-21333 interface multiplexes 2-bit data from memory cell and I/O buses to minimize processor idle time and enhance your computer's performance Server device support for your RAM Module to allow enhanced system performance and reliable memory solution