Features 1.[9 Mode] 2x2 video wall controller that allows you to create large format video wall and digital signage displays through LCD splicing screens. Choose from 9 display modes: 1x1, 1x2, 1x3, 1x4, 2x1, 3x1, 4x1, 2x2, 2x2 rotation (180o image rotation). Supports providing 180 image rotation independently on all outputs. 2.[Easy To Install And Operate] The video wall controller is easy to use, plug and play, no drivers required. A remote control is provided for you to control it easily, or you can just press the buttons on the controller. Please use premium HD Multimedia Interface cable. 3.[Ultra HD Input And Output] Input resolution support maximum 4K30HZ, compatible with computer, laptop, set top box, DVD player. Support 1080P output resolution for each screen when outputting 4 screens at the same time. 4.[Independent Sound Setup] The video wall processor has a separate 3.5mm sound port for connecting to external speakers, cabinets, amplifiers and more. Powerful sound, supports PCM2, 5.1, for Dolby 5.1, DTS5.1 sound formats. 5.[Working Principle] 4K video wall controller, the complete HD Multimedia Interface image signal is distributed into 4 blocks and assigned to 4 video display units (such as rear projection units, LCD TVs, etc,) for splicing and displaying to form a large dynamic image screen. 6.[Multi Application] The video wall splicer allows you to enjoy high definition visual effects. Widely used in traffic command centers, exhibitions, multimedia teaching, large games, video conferencing, security monitoring malls and other places. specificationItem Type: Video Wall Controller_x000D_ Material: Aluminum Alloy_x000D_ Product Size: Approx. 180 x 79.5 x 20mm / 7.1 x 3.1 x 0.8in_x000D_ Input Port: 1 x HD Multimedia Interface_x000D_ Output Ports: 4 x HD Multimedia Interface, 1 x 3.5mm Sound_x000D_ HD Multimedia Interface Version: HD Multimedia Interface 1.4, HDCP 1.4_x000D_ Input Resolution: Maximum 4K30HZ_x000D_ Input Cable Length: 8m/26.2ft, AWG26 HD Multimedia Interface Standard Cable_x000D_ Output Cable Length: 10m/32.8ft, AWG26 HD Multimedia Interface Standard Cable_x000D_ 2 Switching Methods: Switch Button, Remote Control_x000D_ HD Multimedia Interface Sound Output: PCM2, 5.1, for Dolby 5.1, DTS5.1_x000D_ Operating Temperature Range: -10 to +45_x000D_ Remote Control Battery: 1 x CR2025 (Not Included)_x000D_ Plug: 100-240V PackageList1 x_x000D_ _x000D_ VideoWallController 1 x Remote Control 1 x Power Adapter 1 x Instruction Manual NoteManual measurement, please allow some errors.