Need an externally powered USB hub (active)?

Question

USB

Macbook Pro 2016 has two USB-C ports. Also, external USB sound card, USB MIDI keyboard and wired USB mouse and USB condenser microphone. All devices are connected to one USB-C port via a USB-C to regular USB adapter. Not all 4 devices start at the same time. When 3 devices are working - a mouse, a sound card and a midi keyboard, sometimes during operation, the sound is turned off (especially at the time of recording, when an electric guitar is connected).
The problem is that the mac / hub does not have enough power to start all the devices at the same time, and you need to purchase an active usb hub with external power?

Answer 1

A 4-port OTG hub for smartphones with microUSB and external power supply (albeit without a power supply) exists in nature:
There are also many active USB-3.0 hubs. With USB-3.1 (i.e. USB-C), there really wasn’t. Maybe use one of the above via an OTG<->USB-3.1 or USB-3.0<->USB-3.1 adapter?