1080P 2 x 2 HDMI + DVI to 4 HDMI Ports Video Wall Controller Features: 1. Support HDMI and DVI input 2. Support four HDMI outputs 3. The output supports RGB 4:4:4 4. The input resolution supports 1080P1080i720P576P576i480P 5. The output resolution supports 1080P1080i720P576P576i480P 6. Support RS232 control 7. Support 2x21x22x1 splicing, easy to operate, plug and play 8. Support 2x2 automatic stitching function 9. The main function is to divide a complete HDMIDVI high-definition image signal into 4 blocks and then distribute them to 4 video display units (such as rear projection units, LCD TVs, etc.), and complete 4 hdmi high-definition video display units to form one Dynamic image large screen Specifications: 1. HDMI resolution: support 1920x108060Hz 2. Audio format: stereo 3. Input cable length: greater than or equal to 5 meters AWG26 HDMI standard cable 4. Output cable length: greater than or equal to 5 meters AWG26 HDMI standard cable 5. Working current: 300mA (max) 6. Operating temperature range: 0-45 degrees Celsius 7. Size: 121x119x19mm 8. Net weight: 228g Packing list: 2x2 splicer x 1 Remote control x 1 RS232 serial line x 1 User manual x 1