It is easy to spend thousands of pounds on a premium laptop and then try to save money on the accessories that connect it to your workspace. We frequently see users pairing their high-end machines with unbranded multi-port hubs bought online for the price of a pub lunch. Unfortunately, many of these cheap peripherals lack proper voltage regulation, putting your expensive hardware at serious risk.
The Danger of Poor Power Delivery
When you route power through a cheap hub using USB-C Power Delivery, you are relying on the hub's internal circuitry to manage the voltage. Poorly manufactured chips can cause power spikes or fail to communicate correctly with the MacBook's internal controller, leading to fried ports or ruined logic boards. It is a common issue that Apple technicians see regularly, and it is rarely covered under standard warranties.
Signal Interference and Wireless Dropouts
Another widespread but less destructive issue is poor electromagnetic shielding. Unshielded USB 3.0 ports on cheap hubs emit radio frequency interference that directly clashes with the 2.4 gigahertz wireless bands used by your mouse and Wi-Fi router. If your internet connection drops or your wireless mouse starts stuttering the moment you plug in a hub, poor shielding is almost certainly the culprit.