Boost your system's performance with the Signature Line 4GB DDR4 DR 2133 MHz CL15 UDIMM Memory Module with Heatshield from Patriot. Delivering speeds up to 2133 MHz, this dual-rank module is a plug-and-play memory upgrade designed to improve your computer's start-up times, overall responsiveness, and ability to handle data-intensive applications. It is non-ECC and unbuffered, features a CAS latency of 15 and a power rating of 1.2V, and works on systems with a 288-pin UDIMM slot and a DDR4-enabled chip.