Features: High-clear Picture Quality: Supports true 4K30 resolution input and output, ensuring the clarity and delicacy of the picture, allowing you to enjoy the ultimate visual experience. Multiple Splicing Modes: Supports various splicing modes, including edge blending technology, which can be freely selected according to needs. The operation is simple, plug and play. Cascading Function: Supports cascading of two machines, which can achieve larger screen splicing, such as 3X4, 4X3, 4X4, to meet more display needs. Fast Switching: Fast switching speed, picture flip switching, seamless switching, providing a smooth viewing experience. Strong Compatibility: 1 for HDMI input and 9 for HDMI outputs, compatible with various HDMI devices, such as computers, game consoles, DVDs, etc. Flexible Settings: Supports arbitrary picture splicing selection, freely define the starting point, the interface order can be mixed at will, providing more customization options. Note: For HDMI cable must use 19 + 1 full needle of wire. Specification: Optional plug: EU / US / UK Standard Color: Black Material: Metal Stand-alone support mode: 1x1, 1x2, 1x3, 1x4, 2x1, 2x2, 2x3, 2x4, 3x1, 3x2, 3x3, 4x1, 4x2 Dual (2-machine Cascade) support mode: 3x4, 4x3, 4x4 Resolution: 3840x2160 30HZ (input and output) Power connector: AC power connector 3 Power supply voltage: 121A Power consumption: 5w Audio access: SPDIF Video input interface type: HDMI-Compatible Product size: 20.5*9.7*2cm/4.72*2.59*1.73inch Product weight: 480g Package size: 24*13.8*6cm Package weight: 750g Package list: 1* Host 1* Power supply 1* Remote Control 1* Instruction manual