As a brand of Micron one of the largest memory manufacturers in the world we manufacture our memory in-house to meet three key criteria Quality All Crucial DRAM is classified as premium-quality & is extensively tested for performance & OEM compatibility before during & after the production process Compatibility With memory designed for over 50000 systems & with products that range from energy-efficient DDR3L modules to legacy DDR offerings we have one of the most complete portfolios in the industry Selection Backed by one of the industry’s most in-depth quality test programs thirty years of manufacturing expertise & a limited lifetime warranty our modules are built to last Memory Buffered memory type Unregistered (unbuffered) Memory layout (modules x size) 2 x 4 GBInternal memory 8 GBComponent for Notebook Memory form factor 260-pin SO-DIMMCAS latency 19 Memory voltage 12 VModule configuration 512M x 64 Memory ranking 1ECC No Memory clock speed 2666 MHz Internal memory type DDR4