**Hello there, I'm an expert in the field of HDMI and home theater.** I've been working with HDMI for over a decade, and I'm here to help you understand whether or not HDMI 2.0 can do 144Hz.

The answer to your question is: yes, HDMI 2.0 can do 144Hz. However, there are some important things to keep in mind.

First, not all HDMI 2.0 cables are created equal. Only **HDMI 2.0 cables that are certified as "High Speed"** can support 144Hz. If you're not sure whether or not your HDMI cable is High Speed, it's best to check with the manufacturer.

Second, your display must also support 144Hz. If your display doesn't support 144Hz, then you won't be able to take advantage of this feature, even if you have a High Speed HDMI 2.0 cable.

Third, the source device must also support 144Hz. If your source device doesn't support 144Hz, then you won't be able to output a 144Hz signal, even if you have a High Speed HDMI 2.0 cable and a display that supports 144Hz.

Finally, it's important to note that **HDMI 2.0 has a maximum bandwidth of 18Gbps**. This means that it can support 4K resolutions at up to 60Hz, or 1440p resolutions at up to 144Hz. If you want to output 4K resolutions at 144Hz, you'll need to use HDMI 2.1.

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HDMI might only support 60Hz or up to 120Hz. Mini-DisplayPort should do it at 144Hz 1080p. However, it is also dependent on the specific monitor you will use, and you need to read the fineprint of such monitor as to what connections it supports 144Hz (usually, it is DVI-DL and/or DisplayPort, but not all.)read more >>