TP-Link Powered USB Hub 3.0 with 7 USB 3.0 Data Ports and 2 Smart Charging USB Ports POWER SUPPLY
I have a doubt, I bought a UH720 usb hub and it didn't come with the power supply, it worked fine just connected with the computer so I didn't care, but sometimes it disconnect and connect itself. So, I want to buy the power supply but I'm not sure what is really the specification, the website says 12V and 4A, but the back of the hub says 12v and 3.3 A, so which one is the correct? If the correct one is 3.3A is fine if I use a 4A?
Thank you guys