Patriot Memory Signature Line Premium 4GB DDR4 SDRAM Memory Module - For Desktop PC - 4 GB (1 x 4GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz Single-rank Memory - CL19 - 1.20 V - Non-ECC - Unbuffered, Unregistered - 288-pin - DIMM - Lifetime Warranty

Patriot's Signature Premium DDR4 Non-ECC unbuffered memory delivers the quality, reliability and performance expected for today's mainstream computer needs. This 4GB UDIMM is designed to run at PC4-21300 (2666MHz) at CAS 19 latency timings for better overall system responsiveness when using demanding applications.

Built using the highest quality components and hand tested, Patriot ensures every module meets and exceeds industry standards to offer you a hassle-free plug-and-play memory upgrade. With free customer service and a lifetime warranty, Patriot's Signature Premium DDR4 memory modules are the perfect option for any PC system build or upgrade for faster performance.