Boost your system’s performance with the 8GB DDR4 2666 MHz 288-Pin UDIMM Memory Module Kit from Crucial. Delivering speeds up to 2666 MHz, this set of two single-ranked 4GB RAM modules with x16-based chips is designed to improve your computer’s start-up times, overall responsiveness, and ability to handle data-intensive applications. The modules are unbuffered, feature a CAS latency of 19, and and work on systems with 288-pin DIMM slots and DDR4-enabled chips.