Features: 1. Corners protection design; 2. Magnetic modules front maintenance, exchanged at any position; 3. Cabinet full front maintenance; 4. Modules plug-in connection; 5. Support 90 right-angle installation; 6. Landing protection design; 7. Wide viewing angle, high refresh ratio and grayscale; 8. For more indoor fixed and rental projects; 9. Front and rear installation, wall mounting without metal structure, bracket installation, etc.