I think power bars/surge protectors with a built-in USB charger are not worth paying extra money for. I rather buy a power bar with more power outlets, better surge protection, and a longer power cable.
Many full size tower PC have many USB ports which can be used to charge phones. Users can easily add more USB ports for charging things like phones by installing a PCI USB port expansion card which cost around $10 dollars for the more basic PCI USB 3.0 cards.
Users can also buy a USB hub with a AC wall power adapter for around $10 or less on eBay, Amazon, and other shopping sites.
A USB hub can be used for both charging devices like phones, and transferring files from a USB drive to a PC, smartphone/tablet, and other storage device.
USB wall chargers are also not that expensive, and most smartphones/tablets, and other devices come with a USB wall charger.
There are also affordable $10 USB chargers with 2 or more USB ports, and you can take them with you where ever you go.
Many full size tower PC have many USB ports which can be used to charge phones. Users can easily add more USB ports for charging things like phones by installing a PCI USB port expansion card which cost around $10 dollars for the more basic PCI USB 3.0 cards.
Users can also buy a USB hub with a AC wall power adapter for around $10 or less on eBay, Amazon, and other shopping sites.
A USB hub can be used for both charging devices like phones, and transferring files from a USB drive to a PC, smartphone/tablet, and other storage device.
USB wall chargers are also not that expensive, and most smartphones/tablets, and other devices come with a USB wall charger.
There are also affordable $10 USB chargers with 2 or more USB ports, and you can take them with you where ever you go.