Portable and compact, easy to carry. With USB 3.0 interface, the data transfer rate up to 5Gbps. The enclosure provides a fast and easy way to add extra external drive to your notebook. Features: Portable and compact, easy to carry. External ODD/HDD interchange enclosure which can insert not only hard drive but also optical drive. Standard USB 3.0, backwards compatible with USB 2.0, USB 1.1, up to 5Gbps data transfer rate. Apply to standard 9.5mm SATA CD drive and 9.5mm CD-ROM HD holder. Enhance your notebook with the USB 3.0 external drive case. Plug and play, no driver needed. Specifications: Data transfer rate: Up to 5Gbps Interface: USB 3.0 Material: ABS Color: Black, white (optional) Item size: 14.7 * 14.4 * 2cm / 5.78 * 5.66 * 0.78in (L * W * H) Item weight: 200g / 7.05oz Package size: 16.5 * 16.4 * 2.7cm / 6.49 * 6.45 * 1.06in (L * W * H) Package weight: 270g / 9.52oz Note:This is just an external case that can install the optical drive, the optical drive is not included, you need to buy it seperately. Package List: 1 * USB optical disk drive case 1 * Accessory 1 * User manual (English)