Using a PI4 with a external SSD and Frigate with a external USB Coral and reading the power requirements I see I should be using a external powered USB hub. Am I best to have both the SSD and USB Coral on the hub to USB 3.0 connector on the PI 4?
A good quality 2.5A power supply can be used if downstream USB peripherals consume less than 500mA in total.
5 Power specifications
The USB Accelerator is powered by 5V from the USB interface through on-board power management chip (PMIC).
The device should be connected to a host computer with a USB cable that provides at least 500 mA at 5 V. Please note that when the device runs at maximum speed , it can draw a peak current of 900mA
Additionally, the USB Coral draws a considerable amount of power. If using any other USB devices such as an SSD, you will experience instability due to the Pi not providing enough power to USB devices. You will need to purchase an external USB hub with it’s own power supply