Patriot Signature Line 4GB No Heatsink (1 x 4GB) DDR4 2400MHz DIMM System Memory Patriot Signature Line DDR4 Non-ECC unbuffered memory delivers the quality, reliability and performance expected for todays mainstream computer needs. This 4GB is designed to run at PC4-19200 (2400MHz) at CAS 17 latency timings for better overall system responsiveness when using demanding application. 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, Patriots Signature Line DDR4 memory modules are the perfect option for any PC system build or upgrade for faster performance. Memory Capacity 4GB (1 x 4GB) Memory Type DDR4 Module Type DIMM Memory Speed DDR4-2400MHz Pin Configuration 288-pin Registered/Unbuffered Unbuffered Error Correction Non-ECC CL-tRCD-tRP-tRAS CL17.17.17.39 Heat Sink No Working Voltage 1.2V