It can be used. Scan the QR code on the trademark and enter the serial number for official verification.
The easiest way to verify that the Nintendo switch is genuine is to log on to the official website to check or call customer service directly. Whether it is three codes in one or a seal, it is very simple for domestic merchants, but the official will not fool players. You can also open the game console to see if there is any usage record. Sometimes it is hard to guard against it. It is best to buy it through the official physical store and keep the purchase receipt.
The serial number on the switch can be viewed on the bottom of the machine and on the original packaging box. To check the serial number on the system, select Settings on the switch desktop. After opening the settings, scroll down the list to the bottom until you see System. Select Serial information in System. After opening Serial information, you can see the serial code of your current device.