What is the name of the USB device?

Question

PHP

Please help the poor guy. I can't remember the name of the device. You can directly link to the online store. You need a device that you plug into USB on a laptop and connect all the peripherals, mouse, keyboard, speakers, ethernet, wi-fi whistle ... well, or at least some of the above. The task is to plug everything into 1 port and not think about anything.

Answer 1

The error was not in the php code. Problem with receiving data.

Answer 2

Because cryptocurrency_id_name is not equal to "btc" for example

Answer 3

USB hub (hub)