HyperX HX426C15FB/8 is a 1G x 64-bit (8GB) DDR4-2666 CL15 SDRAM (Synchronous DRAM) 2Rx8, memory module, based on sixteen 512M x 8-bit FBGA components per module. Each module kit supports Intel® Extreme Memory Profiles (Intel XMP) 2.0. Each module has been tested to run at DDR4-2666 at a low latency timing of 15-17-17 at 1.2V.