Forgive my ignorance but what is PSU

I am in need of a FPV monitor with hdmi out, and I thought the black pearl would be a good choice

I notice that there are two prices £138 or £100 - but the £100 one doesn’t have psu

Is this good/bad? What do I need PSU for - I already have antennas etc.

“FLYSIGHT BLACK PEARL 7” FPV MONITOR (5.8GHZ, 32 CHANNEL) - WITHOUT PSU"

Thanks for the help in advance.

I think you’ll find that the list price is 102.50 and not 100 as you stated.

The one that is discounted does not have a power supply brick, its the thing you use the power the monitor via a plug, or charge the battery. If you have a laptop its the power brick that you plug into the wall socket and your lapop.

PSU stands for power supply unit, and dont worry about the acronyms there are literally hundreds in or hobby and I still come across new ones from time to time and have to ask what it means :stuck_out_tongue: