C-Angel with 45° clipped corner for right angle screen, optional arc fast lock, to make curved screen, four-sided screen, five-sided screen, etc. Features: 1. 500*500*87mm, 6.8kg/cabinet, P2.97, P3.91 indoor are available. 2. Die-casting aluminum cabinet, high strength, accurate precision, strong toughness, and not easy for deformation. 3. Flat Error<0.2mm, effectively eliminating the concave and convex mosaic phenomenon of the whole screen; 4. Fast lock, locked within 2 seconds, aviation connector for quick wiring. 5. Optional magnetic front maintenance module 6. Optional arc fast lock, -15°~15° adjustment, can be 90° corner screen, curved screen, four-sided screen, five-sided screen, six-sided screen, etc.; 7. High gray level and high refresh rate, gray scale ≥13 bit, refresh rate 3840Hz; 8. Excellent heat dissipation, silent operation without external fan air conditioner.