The Kingston A400 (SA400S37/960G) is an internal solid-state drive designed to breathe new life into older laptops or desktop computers by replacing slower mechanical hard drives. With a capacity of 960 GB, it provides ample space for your operating system, essential applications, and extensive data storage while utilizing 3D TLC flash memory and a Phison PS3111-S11-13 controller to maintain stable performance. You will notice a significant boost in responsiveness thanks to sequential read speeds reaching 500 MB/s and write speeds up to 450 MB/s, which means your computer boots faster and programs launch more quickly. The drive is built into a compact 2.5-inch SATA III enclosure measuring 100 by 69.9 mm with a slim 7 mm height, ensuring it fits easily into most standard drive bays. Weighing only 41 g, this lightweight component offers a total endurance of 160 TB written, making it a reliable choice for users who want a noticeable speed upgrade without replacing their entire system.