The Komputerbay 16GB DDR3/L 1866MHz memory RAM is designed for select laptops, all-in-one systems, and NAS systems. With a total capacity of 16GB divided into two 8GB modules, this SODIMM memory offers a bus speed of PC3-14900 (DDR3-1866) and a low CAS latency of 9. It operates at a voltage of 1.5V and features non-ECC memory technology, making it a reliable choice for enhancing the performance of your computer system.Pulled from working iMac.