This Philips DS-8A3S model is an internal laptop DVD±RW drive with SATA I and SATA II interfaces. It is compatible with most laptops and can write to DVD+RW format. The enclosure is also designed for internal laptop use.This drive is perfect for those who need an additional or replacement DVD±RW drive for their laptop. It is a reliable and high-quality product that will meet your needs. Order now and enjoy hassle-free installation and use.