The Lot of 4 DA-8AESH DVD/CD Rewritable Drive RW are internal desktop drives that are compatible with laptops, PCs, and Macs. These gray-colored drives feature a SATA III interface and can read and write various formats such as DVD+RW, DVD-R, CD-R, DVD+R, and DVD-RAM. Manufactured in China, this unit includes one drive and is ideal for those looking for reliable and efficient CD/DVD drives for their computing needs.