1. Material: aluminum alloy + silicone 2. Scope of application: 11-15.6 inch laptops, tablets, books 3. Freely adjustable height 4. Foldable design, easy to carry 5. Plug and play, easy to use 6. Compatible with Windows, Mac OS, Linux operating systems 7. Hollow design at the bottom, long-lasting work without getting hot 8. Silicone pad on the back plate to prevent the equipment from sliding down 9. Support simultaneous expansion of multiple devices without plugging or unplugging 10. Output interface: USB-A 3.0*2+SD card 11. Input interface: USB-A 3.0*1 (reserved 5V 2A power supply port) 12. Size: 275x255x50mm
