1. Die-casting aluminum , low temp-rise2. Hard Connection, HUB card design, Without Any Cables3. Magnetic front service or Back service with screw4. High-efficiency cooling, No fan ,mute design, noise-free.5. High refresh rate , low light high gray6. High precision, seamless splicing, accurate to size of the electrical and mechanical processing 0.1mm7. Lightweight - weighs only 7kg, single person can be a single portable, and extremely easy to install;