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This 4-in-1-out HDMI2.1 switching box fully complies with official HDMI2.1 and HDCP2.3 standards with 48Gbps ultra-high transmission bandwidth. It centralizes up to four game consoles, streaming sticks and media players onto one single QLED television, projector or gaming monitor. Equipped with auto signal detection, physical button and infrared remote three switching ways to meet different operation habits. It covers mainstream high-end specs including 8K@60Hz,4K@120Hz,HDR10,Dolby Vision and lossless surround sound Dolby Atmos, supports core gaming functions VRR/ALLM to eliminate screen tearing and input lag. No extra software installation required, ideal for multi-device gaming station, home theater and desktop multimedia arrangement.