Raspberry Pi can work with an external SSD hard drive without having to use an external power supply.
- Hard Drive Adapter
- /boot/config.txt Configuration
Hard Drive Adapter
Personally I use the Sabrent USB 3.0 to SSD which costs about £8, but feel free to use whichever one you want.
To ensure there's enough power for the hard drive to work, open the file:
And add the following parameter:
Reboot and you are good to go.