So g stays community, but s have to be retained mystery for that ethereum wallet to remain secure, just after deriving your ethereum address from the public important. Indeed, there isn't the USB but i see that there are pins for GPIOs and GND 5V / 3v3 so i think https://webtagdirectory.com/listings12699723/the-smart-trick-of-trc20%E5%9C%B0%E5%9D%80%E7%94%9F%E6%88%90-that-no-one-is-discussing