The Multi Function External Optical Drive Reader Writer Model Bd105 is a versatile external drive that is compatible with laptops and PCs. Featuring a sleek black design, this unit has a convenient USB port for easy connectivity. With the ability to read DVD-R format and write DVD+RW format, this optical drive is perfect for those needing to read and write various types of optical media. The 2 MB cache ensures faster performance, making it an efficient tool for any computing task requiring optical drive capabilities.