1. Material: ABS+PC+black matte galvanized iron 2. Net weight: 1620 g 3. Dimensions: 546 x 200 x 90mm 4. Style: modern and simple 5. Features: wireless charging, increased storage, USB3.0 expansion, metal body 6. Installation method: screw embedded 7. Increase storage, side USB expansion: support keyboard, mouse, U disk, hard disk, Bluetooth, receiver and other devices 8. Pick up and use, put down to charge: MAX: 15W, support wireless charging mobile phones and other devices with QI wireless charging protocol 9. USB function assembly: UDB accessories on both sides can be assembled as required 10. Note: When assembling on both sides, please pay attention to the gap fit, and gradually press in. When the innermost is pressed, the buckle will be automatically locked