01TVS & ACCESSORIES
Three sources, one seamless screen
Tucked away behind the television or nestled on the media shelf, this compact switch resolves the clutter of multiple cables. It allows a single display to host several sources without the daily ritual of swapping plugs.
The Simplecom CM303 manages three HDMI inputs into one output, supporting high-resolution video up to 4K. It suits households where streaming boxes, game consoles and Blu-ray players share one screen.
02DESIGN
A compact hub for modern media
The unit is small enough to disappear into the back of a TV stand, yet robust enough to handle constant use. Its form factor prioritises function over bulk, ensuring that the visual focus remains on the screen rather than the hardware. The ports are clearly arranged for straightforward connection.
PERFORMANCE
High-fidelity signal handling
Engineered for clarity, the switch supports bandwidth up to 18Gbps, enabling smooth 4K playback at 60Hz. It preserves 12-bit deep colour per channel, maintaining the richness of the original image. Compatibility spans HDMI 1.4 and 2.0 standards, ensuring broad device support.
CONTROL
Effortless switching from the sofa
An included infrared receiver and remote allow you to change inputs without leaving your seat. The system also features auto-switching, detecting when a new device powers on or becomes the sole active source. Manual selection is available via a button on the unit if precise control is preferred.
POWER
Sustained by your connected devices
This switch requires no separate power adapter, drawing energy directly from the connected HDMI sources. This eliminates an extra cable and plug from your power strip, simplifying the setup process. As long as the connected devices supply sufficient power, the switch operates seamlessly.
AT A GLANCE
The key points
- Supports 4K resolution at 60Hz with 12-bit deep colour
- Auto-switches to active input or via remote control
- Powered by connected devices; no external power needed
- Compact design fits discreetly behind the television
About this product
Simplecom CM303 Ultra HD 3 Way HDMI Switch 3 IN 1 OUT Splitter 4K@60Hz
CM303 is a 3 Way mini HDMI switch that can expand the HDMI input of your HDTV, which can connect more HDMI compatible devices for seamless transitions. Easy plug & play operation, simply connect the HDMI input sources to the HDMI inputs on switch and the HDMI output port to HDTV.
It will automatically switch to the newly switched on input, or if there is only one active input left. If there are multiple active inputs, you can select the input by press the select button on the switch or use the remote control.
The included infrared receiver and remote control allows the switch to be controlled from a distance. Easily switch between HD devices without having to get up from your seat.
No external power is required to make this switch work, as long as the connected HDMI devices supply sufficient power to the switch.
Auto Switching
Infrared Receiver and Remote Control
Powered from Connected HDMI Devices
Features
- Support 3 HDMI input devices to share one Screen
- 3 HDMI inputs and 1 HDMI output
- Supported Video Resolutions up to 4K@60Hz*
- Supports 12 bit deep colour per channel
- Backward compatible with previous HDMI revisions
- Supports bandwidth up to 18Gpbs
- Supports Auto Switching to active input source port
- Plug-and-Play, No external power required for standard HDMI devices
Specifications
- HDMI version support
- HDMI 1.4, HDMI 2.0
- HDCP version support
- HDCP1.4, HDCP 2.0
- HDMI Input Ports
- 3
- Video Amplifier Bandwidth
- 18Gbps
- Support Video Format
- 4K (3840X2160) @ 60Hz / 1080p / 1080i / 720p / 576p / 480p / 576i / 480i / 3D Video
- Support Video Color
- 12 bit Deep Color Per Channel
- HDR support
- HDR10
- Support Audio Format
- DTS-HD, Dolby-TrueHD, PCM, LPCM
- Power Input
- MicroUSB 5V (No external power required for standard HDMI devices)
- Operating Temperature
- 0°C to 70°C
- Operating Humidity
- 10% to 85% RH(no condensation)
- Dimension
- 82x58x19(mm)
Note
For 4K@60Hz signal, 18Gbps HDMI cable is required, input and output cable length are limited to 2M
Apple TV and some online streaming box keeps its HDMI port active even in the sleep state. Hence, auto-switching may not work with them. Manual switching can still be used in this scenario.
Devices that require HDCP 2.2 or higher may be incompatible
Package Contents
- 1x 3 Way HDMI Switch
- 1x Remote Control
- 1x IR Receiver
- 1x USB Power cable
- 1x HDMI Cable 0.5M
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