ATEN VS184B 4-Port HDMI True 4K Splitter – HDMI 2.0, HDCP 2.2, HDR10+

You've got one source — a media server, a set-top box, a presentation laptop — and four screens that all need to show it at the same time. The VS184B handles that without dropping a frame. True 4K at 60Hz with full 4:4:4 chroma, HDCP 2.2 for protected content, and HDR10+ so your highlights actually pop on the displays that support it. The EDID Expert DIP switch means you set the handshake once and stop chasing "no signal" messages every time someone reboots the room. Fifteen metres at 1920×1200 or 1.8 metres at True 4K gives you enough reach for most room layouts. Plug in, flick the switch, all four screens come up clean

• Splits one HDMI source to four displays simultaneously — no drivers, no software
• True 4K (4096×2160 / 3840×2160) at 60 Hz with full 4:4:4 chroma subsampling
• HDMI 2.0 compliant; HDCP 2.2 and HDR10+ supported natively
• Up to 15 m cable run at 1920×1200; 1.8 m at True 4K (compatible with ATEN 2L-7D02H)
• EDID Expert DIP switch — Port 1, Default, or Auto for reliable power-up
• LED indicators confirm power status and active source