I put a $20 USB hub in my car, and now my dash cam, phone, and Android Auto all run off one port

Charging multiple devices while driving can be a hassle, especially when cars have limited USB ports. One man found a simple and cost-effective solution by using a 12V socket USB hub. This small accessory plugs into his car's cigarette lighter socket and provides him with two USB-A ports and a USB-C connection. The advantage of this setup is that it offers more USB connections, higher charging speeds, and modern standards than typical car ports.

The 12V socket charger delivers enough power to run the user's dashcam and even charge a MacBook at high speeds. It can also accommodate additional devices like phones and earphones. The convenience extends to sharing power with others in the car, as the hub can easily power someone else's device as well.

However, there are a few limitations to consider. Not all USB ports on the 12V socket provide full power; the power is split between ports, with more reserved for USB-C. The USB-A ports, for instance, may not charge devices at their maximum speed. Therefore, the user designates the USB-C port for his phone or laptop and the secondary USB-A port for his headphones.

To ensure safety, the user also purchases an adapter with overcurrent protection. Although it's uncommon for devices to draw excessive power from a car's electrical system, some larger laptops can pull significant power, and a safe adapter is essential. For under $20, this simple accessory can significantly improve the charging setup in a car, powering dashcams, phones, and other accessories at full speed.