Ingenious design, connect the notebook SATA optical drive to the computer, and the mobile optical drive function can be easily built in two types: single USB port and dual USB port. Please look before buying. The SATA end has fixing screws, which can prevent the optical drive from accidentally falling off during use. The product transmission interface uses a very stable USB2.0 interface and is backward compatible with USB1.0. Supports operation without external power supply. Supports notebook SATA optical drive, the product is small in size, plug and play, easy to carry. Instantly become 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: Transmission Interface: USB2.0 Transmission Speed: USB2.0: 480Mb/s Application Object: Notebook SATA optical drive Hot Swap: Support Power Supply: USB power supply on the host side Material: Plastic