
Expand your computer's connectivity with this Dynex™ DX-U27H41 USB hub, which features 7 USB 2.0 ports that support data transfer rates up to 480 Mbps for speedy uploads and downloads. A 5V, 500 mA/port output delivers reliable power to USB devices.
Q: what's the reason for connecting the hub to AC power?
A: If you have a lot of power-hungry USB devices, like a Webcam, External Hard-drives, microcontrollers, wifi dongles, etc, the current draw will overload the 500mA available through your typical USB port. Especially if you are using a netbook.
Q: What is the operating tempearture range?
A: 32-95 F
Q: Can you connect a keyboard and mouse to a hub?
A: YES, a keyboard and mouse will work with this Dynex Hub, as long as neither needs additional power. I have 2 keyboards now connected to my machine, along with mouse, 3 printers and scanner -- all work flawlessly. Make sure you're dealing with USB 2.0 ports, though. If your machine supports USB 3.0, you may want to upgrade to that USB Hub (though this wasn't necessary for me).
A: As far as I know (and I'm hardly a techie) -- the HUB is not designed to charge a device; it only relays the device's signal to the computer. You're asking it to provide a function it wasn't designed for, unfortunately.