Tested and fully functional. Includes 2 matching Micron 16GB DDR4 SODIMM modules for a total of 32GB. Specifications: • 16GB per module (32GB total) • DDR4 2666MHz (PC4-21300 / PC4-2666V) • 2Rx8 dual rank • Non-ECC, 1.2V • Model: MTA16ATF2G64HZ-2G6E1 Pulled from a working system and verified. Compatible with most laptops, mini PCs, and small form factor systems that support DDR4 SODIMM 2666MHz memory. Clean condition with normal signs of use. Ships fast and securely packaged.