SKU: 68474860432

Simplecom CM303 Ultra HD 3 Way HDMI Switch 3 IN 1 OUT Splitter 4K@60Hz

Sale price$18.00 Regular price$20.00
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Simplecom CM303 Ultra HD 3 Way HDMI Switch 3 IN 1 OUT Splitter 4K@60HzSimplecom 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. Auto Switching It will automatically switch to the newly switched on input, or if there is only one

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.

Auto Switching
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.

Infrared Receiver and 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.

Powered from Connected HDMI Devices
No external power is required to make this switch work, as long as the connected HDMI devices supply sufficient power to the switch.

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 68474860432

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4.0 ★★★★★
Based on 19 reviews
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Verified Purchase
Lyn Arnold
Phoenix, US
★★★★★ 5
Works great!
Color: Black, Color: Black
Works great! The mat is a good size and the charger works well! So much more convenient than plugging in to charge.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
A
Verified Purchase
Amazon User
Draper, US
★★★★★ 5
Love it!
Color: Black, Color: Black
Great accessory! Needed a desk mat and saw this one that includes a wireless charger and it works perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
A
Verified Purchase
A Pollock
Houston, US
★★★★★ 5
Worth every penny!
Love this desk mat! Huge, sleek light-gray mat with built-in wireless charging. Fits my full keyboard, mouse, and phone perfectly. Super smooth for the mouse, stays put, and instantly made my desk look way cleaner. Great quality and worth every penny!
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Reviewed in the United States on December 8, 2025
K
Kyle Biggs
Fort Morgan, US
★★★★★ 5
Still Usefil for a Samsung S24 Ultra User
Color: Black
The Charging Pad: The pad is super flat (nearly the same thickness as the pad) and looks nice next to it or a similar mouse and keyboard pad. It works perfectly for my Samsung S24 Ultra without a case on it, but having a 'magsafe' style case would improve the experience. You do have to take a second to get the alignment right. It uses USB-C instead of cheaping out with a micro, and the status light is helpful. I don't think I own anything that can charge in the headphone area, and in case you're wondering, neither spot will charge a Samsung smartwatch (as expected). I'd nearly recommend this just for the charging pad since it's so unobtrusive on the desk. Just remember you'll need to route that wire out of the top of it somewhere. The mouse pad: The size is probably perfect for a typical keyboard and mouse user. I always have a 3D mouse on the left, and an extra long Coursair keyboard, so I prefer having a gigantic mat for all of that. But there is one feature of this mouse pad that I like more than most. The material doesn't attract every spec of dirt and hair in the universe, and it's easy to wipe off. Because of this, I use the pad under my 3D mouse and keyboard, with a larger full-desk pad underneath (including the mouse area). The felt material on the back keeps this locked to my desk, and unlike a rubberized pad, isn't going to turn into glue after a few years. I did test my mouse on the pad, and it feels fairly good. It's not too smooth, and is a bit easier on your hand, but very serious gamers may take some time to adjust.
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Reviewed in the United States on March 12, 2026
M
Max
Carnegie, US
★★★★★ 4
Smaller and more expensive than artisian deskmats
Color: Black
These are slightly smaller than the standard artisan deskmats and double the price.. It's also about half the thickness, so there's not as much padding. This isn't a huge deal. if the felt is on the bottom, it doesn't grip to the desk very well. The wireless charger is okay, but I found it bulky. Having a small dedicated 3 in 1 charging stand was more convenient for me. If you have a heaver mechanical keyboard, you won't be able to lift this thing to see underneath it. Overall, this is an okay deskmat and it'll serve it's purpose when I'm washing my regular deskmat, but not my favorite.
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Reviewed in the United States on March 15, 2026

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