The A-Tech ATMS322397B12034X1 memory RAM module was specifically engineered to be compatible with the HP ProBook 4530s. Included in the package is a Genuine A-Tech Brand 4GB Single DDR3L PC3L-12800 2rx8 1.35v Non-ECC Memory Stick (204-pin SO-DIMM 1600MHz) upgrade. 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 your system's 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. Give your computer the best, trust A-Tech!