Powering the PTZ camera (what Vcc?)

1.Which seller did you purchase the product(s) from?
UCTRONICS
2.The Model number of the product(s) you have purchased?
B0167B12
3.Which Platform are you using the product(s) on?
Raspberry Pi 3B+/4B
4.Which instruction are you following?
Online documentation
5.Has your product ever worked properly?
Still Setting up
6.What problems are you experiencing?
I have recently bought an Arducam IMX477 12MP PTZ Camera, which includes the two servos which I’m trying to get working for the first time. I can see where all the cables go on the Raspberry Pi apart from the two labelled ‘Servo VCC’/‘GND’ on the diagram at:

https://www.arducam.com/docs/cameras-for-raspberry-pi/ptz-camera/hardware/

From looking at the video of the camera at:

https://youtu.be/ezf1cgIzWWg

It looks like it’s being powered from a USB cable, but the video isn’t 100% clear.

Please can you tell me:

What voltage the servos need and what is their maximum current draw?
If I can simply connect these Servo VCC cables to pins on a Raspberry Pi 3B+/4B board?
If I can draw the power from a USB port on a Raspberry Pi?
If so is there are is an off the shelf connector to convert from a USB A male connector to pins suitable for the Servo VCC connectors?

7.What attempts at troubleshooting have you already made?
Read the documentation, searched the forums and Googled.
8.How would you like us to help you?
Answer my four questions, about powering the servos.