The Cyberdrive Technology CW078D CD Drive is a reliable internal desktop drive with a form factor of 5.25 inches, making it compatible with PCs. It offers a fast read speed of 40x for CD-ROMs and a write speed of 48x for CD-RW discs, providing efficient performance for your storage and multimedia needs. With an IDE interface, this CD drive from Cyberdrive Technology is a practical choice for expanding the storage capabilities of your computer system. Functioned when last tested.