Mix to the max.
The all-in-one mini-mx video enables accessible professional multi-source video productions with cameras, laptops and multiple audio sources. For live presentation and streaming, do it all with ease from the unique and fully featured mini-mx.
mini-mx supports VISCA protocol for PTZ control. Control up four separate cameras with pan, tilt, zoom and focus.
The joystick provides tactile control for each PTZ camera. Used together toggle, set pan, tilt, zoom and focus from the front panel. Joystick and toggle are additionally dynamically assigned to settings including scale, position and crop for enhanced usability.

Mix multiple audio sources into the output from embedded HDMI and insert external audio via mic, line and even Bluetooth audio.

For total integrated control of a presentation, direct and preset almost any PTZ camera from on board mini-mx with dedicated hardware controls and the large, intuitive touch screen interface. Control up four separate cameras with pan, tilt, zoom and focus.
Bring live presentations life and seamlessly stream.
Do it all with ease from the unique and powerful mini-mx.

Key Features

• 4K multi-channel streaming video mixer
• Built-in 5.5 inch touch screen for menu operation
• Quad HDMI 2.0 inputs, resolutions up to 4K@60
• Dual HDMI 1.3 outputs for monitoring of multi-window PVW and PGM
• Dual MIC In, Dual Audio Out for audio monitoring
• Mix for HDMI embedded and external audio
• One-key recording. Recording capacity of hard drive is up to 2T
• Support multi-layer overlay, layer scaling and cropping
• 15 switching effect modes
• 5-direction joystick for controlling up to 4 PTZ cameras
• Save and store up to 16 scene presets. One-click for preset recall
• Control via computer and mobile phone
• Support Chroma Key
• One-key quick switch between portrait and landscape screen
• Stream up to 4 platforms simultaneously over IP and 32 platforms via TAO APP

https://www.rgblink.com/productsinfo.aspx?id=252

RGBLink Mini Pro

Also Check out RGBLink Mini Pro that can serve well in 4K switcher world!

Key Features

• mini switcher convenient to carry
• Built-in LCD for video previews
• Joystick Camera Control
• T-Bar switch and 14 transition effects
• 4K HDMI inputs
• Support live streaming via USB 3.0
• Support recording via USB 2.0
• Embedded & Insert Audio with Sync
• Mix audio from multiple inputs
• Configurable PIP video overlay
• Chroma Key
• Configurable PIP video overlay
• Support for third party apps including OBS Studio
• Control remotely from XPOSE mini software for computers, mobiles and tablets

https://www.rgblink.com/productsinfo.aspx?id=168

Available through Amazon : RGBlink Mini-pro Video Switcher with 4 HDMI Inputs