I can't vouch for that, I'll attempt again on my rewire, but I couldn't get it to work personally, Hence why I opted for the 5V rail from the board itself. Supposedly, the board supports 5A on the 5V rail, so it shouldn't have an issue pushing the 3A over USB, I planned on poking at it again when I go to rewire the electonrics. Hoping I can 100% confirm/Deny