Ingenious design: Connect a notebook SATA optical drive to your computer and easily create a mobile optical drive function in two types: single USB port and dual USB port. Please check before purchasing. The SATA end has fixing screws, which can prevent the optical drive from accidentally falling off during use. The product transfer interface uses a highly stable USB2.0 interface and is backward compatible with USB1.0. Supports operation without an external power supply. Supports notebook SATA optical drives. The product is small in size, plug and play, and easy to carry. Instantly becomes an economical and convenient notebook optical drive external optical drive. Two-color indicator light: power - blue, read and write - red (no indicator light for dual USB ports). Product Specifications Transfer interface: USB2.0 Transfer rate: USB2.0: 480Mb/s Application object: Notebook SATA optical drive Hot swap: support Power supply: USB power supply on the host side Material: Plastic