I ordered the Razer Thunderbolt 5 Dock from official site and it delivered yesterday. Connected a Skydimo RGB strip to it's USB A port and I got the windows "Power surge on the USB port" message. The RGB I have is for a 27 inch monitor and it covers 4 sides of my screen, so it does require some power. When I lower the brightness then it works as usual, but once I set the brightness back up to anything more than around 70%, it just turns off completely. I tried the other USB A port and got the same results. But if I connect it to the usb c ports via adaptor (including the non thunderbolt 5 one), its able to light up as usual.
I tried searching on the web but it only says the USB A ports support 10gb/s data transfer and didn't mention anything about the wattage available. Normally I would assume its just what it is but just want to know if it's possible my dock is faulty because (1) it is a somewhat premium product, and (2) my old Dell dock that doesn't even uses thunderbolt 4 could support the RGB fine at full brightness using USB A ports.