Patriot’s Signature Line Ddr3 Non-Ecc Unbuffered Memory Delivers The Quality Reliability And Performance Expected For Today’s Mainstream Computer Needs. This 4Gb Is Designed To Run At Pc3-12800 (1600Mhz) At Cas 11 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 Line Ddr3 Memory Modules Are The Perfect Option For Any Pc System Build Or Upgrade For Faster Performance. Memory Capacity 4Gb (1 X 4Gb) Memory Type Ddr3 Module Type Dimm Memory Speed Ddr3-1600Mhz Pin Configuration 240-Pin Registered/Unbuffered Unbuffered Error Correction Non-Ecc Cl-Trcd-Trp-Tras Cl11-11-11.28 Heat Sink No Working Voltage 1.5V