8GB KIT (2 x 4GB) SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz For Toshiba Toshiba Satellite. Designed For Toshiba Toshiba Satellite: L850-A699, L850-A700, L850-A701, L850-A840, L850-A841, L850-A842, L850-A843, L850-B1W, L850-B200, L850-B223, L850-B241, L850-B257, L850-B258, L850-B4K, L850-B4S, L850-B5K, L850-BT2N22, L850-BT3N22, L850D-12P, L850D-12Q, L850-F31R, L850-F31S, L850-ST2NX1, L855 (PSKFUM-06QTM1), L855-01Y, L855-030, L855-10T, L855-11F, L855-11K, L855-11P, L855-122, L855-12Q, L855-13Q, L855-14U. Will also work with many other brands and models. Genuine A-Tech Brand: A-Tech is one of the most trusted names in Premium Memory. Backed by a Lifetime Warranty and 5 star customer support, A-Tech has you covered! Memory upgrades have never been easier. Designed specifically to help your computer run faster and smoother, an A-Tech memory upgrade is one of the fastest, most affordable, and easiest ways to improve system performance. A-Tech memory empowers your computer to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. A-Tech modules are rigorously tested to ensure that your memory meets our stringent compatibility and performance standards. Every A-Tech ram module is tested for complete functionality before it leaves our doors and includes toll free technical support at 1-866-557-4527. Give your computer the best, trust A-Tech!