Mirror Toughened Glass Panel: Mirror tempered glass panel has a simple and fashionable appearance and is of good quality. Expansion of 4 USB 2.0 Interfaces: 4 USB 2.0 interfaces meet your daily work and entertainment needs. Support Reading from 4TB Hard Disk: With the power supply port, it can easily read from 4T hard disk. Light Green Pilot Lamp: Light green design, stay abreast of equipment working status. Small and Portable Plug and Play: Small and lightweight, it can be easily packed into the computer bag and supports plug and play without installing the driver.