Do I need power supply for this USB hub?

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Vince_M

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Nov 6, 2021
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Planning to buy this USB 2.0 hub but it seems that it doesn't come with power supply. Will one USB cable be enough to power it like it is showed on pictures?

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As long as you're not attaching devices that don't require too much power, and as long as the USB port it's connected to behaves well, it'll be ok. Officially a single USB port on a motherboard is only supposed to allow 500mA for USB 2.0 or 900mA for 3.0 but modern motherboards will usually go up to 1-2A before complaining or cutting out.
 
NattyKathy said:
As long as you're not attaching devices that don't require too much power, and as long as the USB port it's connected to behaves well, it'll be ok. Officially a single USB port on a motherboard is only supposed to allow 500mA for USB 2.0 or 900mA for 3.0 but modern motherboards will usually go up to 1-2A before complaining or cutting out.
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I will use that USB hub for bluetooth, 2 wireless gamepads and wireless headphones adapters. That shouldn't use too much power.

USB 3.0 hub is a little more expensive, it works on same system like this one. That would be a safer and future proof option.
 
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Vince_M said:
I will use that USB hub for bluetooth, 2 wireless gamepads and wireless headphones adapters. That shouldn't use too much power.

USB 3.0 hub is a little more expensive, it works on same system like this one. That would be a safer and future proof option.
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Go with the usb 3 hub. Thank us later. There is no reason to buy anything 2.0 anymore. And if you plug a 3.0 device into a 2.0 hub, windows will complain and have a pop up saying the device can run faster in a different port.
 
jmilcher said:
Go with the usb 3 hub. Thank us later. There is no reason to buy anything 2.0 anymore. And if you plug a 3.0 device into a 2.0 hub, windows will complain and have a pop up saying the device can run faster in a different port.
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I will :) I am looking this on aliexpress and now I see that all this cheaper hubs has fixed cable lenght around 20-50cm. I will need to go with some brand expensive ones, they have higher price but cable is around 100cm.

Why some of them have charging message warning?

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