The Crucial 16GB (2x8GB) DDR3L-1600 204-Pin SO-DIMM Unbuffered RAM Kit includes two 8GB modules of DDR3L RAM, designed for laptops and other devices that use SO-DIMM memory slots. With a lifetime manufacturer warranty, this RAM kit is reliable and high-quality. The DDR3L-1600 bus speed ensures faster data transfer speeds, while the unbuffered memory feature provides more stable performance. Upgrade your computer with this RAM kit to improve speed and efficiency for all your computing needs. Factory sealed never opened. New, sealed old stock; never installed or tested.