🧠📺 HDMI • HDMI Splitter

An HDMI splitter takes one or more HDMI inputs and sends the same signal to multiple outputs. It’s ideal for duplicating content across TVs, monitors, or projectors—especially in signage, gaming, or AV control setups.
 
🔧 Splitter Formats & Use Cases
🔹 1 In 2 Out
🧩 One HDMI source → Two identical HDMI outputs
📺 Use Case: Mirror a laptop or media player to two TVs or monitors
🧠 Ideal for small setups like dual-display gaming or mirrored presentations
🔹 1 In 4 Out
🧩 One HDMI source → Four identical HDMI outputs
🖥️ Use Case: Broadcast one signal to multiple screens in a room or venue
🧠 Great for classrooms, sports bars, or digital signage walls
🔹 1 In 8 Out
🧩 One HDMI source → Eight identical HDMI outputs
🏢 Use Case: Large-scale duplication for events, control rooms, or retail displays
🧠 Perfect for synchronized multi-screen environments
🔹 4 In 2 Out (Matrix Style)
🧩 Four HDMI sources → Two selectable HDMI outputs
🔁 Use Case: Route any of four inputs to either of two outputs independently
🧠 Ideal for AV switching setups, conference rooms, or home theaters
 
🖥️ Compatible Devices
💻 HDMI laptops, desktops, media players
🎮 Game consoles (PS5, Xbox Series X, Switch)
📀 Blu-ray players, streaming boxes (Roku, Fire Stick, Apple TV)
📺 TVs, monitors, projectors
🧠 AV receivers, capture cards, soundbars
 
✅ Common Uses
🧠 Mirror one HDMI source across multiple displays
🏫 Duplicate content for classrooms, training, or signage
🎮 Multi-screen gaming setups
🏟️ Broadcast one feed to multiple TVs in public spaces
🧪 Test multiple displays with a single HDMI source
🔁 Route multiple sources to fewer screens (matrix-style)
 
🧠 Signal Format Notes
⚙️ HDMI: Digital video + audio (up to HDMI 2.1)
📉 Most splitters support up to 4K@60Hz or 8K@60Hz depending on model
🔁 Mirror mode only—no extended desktop support
🔊 Audio formats: LPCM, Dolby Digital, DTS, Atmos (varies by model)
🧠 Some splitters support EDID management and auto downscaling
 
⚠️ Things to Watch Out For
🚫 Splitters duplicate screens—they don’t extend them
🔌 Powered splitters recommended for stable signal and longer cable runs
📉 Mixed resolution displays may require downscaling support
🔁 Matrix-style splitters need configuration—check for remote or button control
🧯 HDCP compliance matters—some splitters won’t pass protected content
 
🛠️ Quick Tips for Beginners
🧠 Label inputs and outputs clearly—HDMI ports look identical
🔍 Use high-quality cables for 4K/8K setups
🧼 Keep splitter ventilated—some units run warm
🧪 Test each output before final install
🎨 Choose powered models for anything beyond 1 In 2 Out