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A four-port "long cable" "external box" USB hub A four-port "compact design" USB hub: upstream and downstream ports shown. A USB hub is a device that expands a single Universal Serial Bus (USB) port into several so that there are more ports available to connect devices to a host system, similar to a power strip. All devices connected through a ...
Standard USB hub ports can provide from the typical 500 mA/2.5 W of current, only 100 mA from non-hub ports. USB 3.0 and USB On-The-Go supply 1.8 A/9.0 W (for dedicated battery charging, 1.5 A/7.5 W full bandwidth or 900 mA/4.5 W high bandwidth), while FireWire can in theory supply up to 60 watts of power, although 10 to 20 watts is more typical.
Portable devices having a USB On-The-Go port may want to charge and access a USB peripheral simultaneously, yet having only a single port (both due to On-The-Go and space requirement) prevents this. Accessory charging adapters (ACA) are devices that provide portable charging power to an On-The-Go connection between host and peripheral.
There are five AC outlets and four USB ports, enough for everyone to charge their devices all at once, no fighting for outlet space. Save $10 with Prime $10 at Amazon
Unlike USB 2.0 and USB 3.x it does not provide a way to transfer data directly, but rather it is a mere container that can contain multiple "tunnels"/virtual connections. Other specifications are referenced to define the contents and internal functionality of a tunnel. USB4 defines the following tunnel types: USB3 connections; DisplayPort ...
Sold exclusively at Walmart, the IonMug costs way less than other self-heating mugs I've tested. ... Muggo's travel mug solves this with a simple USB-C charging port (though that heated travel mug ...
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