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Questions tagged [usb-hub]

172 questions
69
votes
3 answers

A USB hub will not function when it's connected more than 5 hubs away from the root port

I am trying to utilize my monitor's ability to switch video input and USB source (much like a KVM switch) with a USB hub. Previously I had all of the devices plugged directly into USB ports on the monitor. I could switch video input on the monitor…
ahsteele
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44
votes
5 answers

What would happen when USB devices draw more power than the hub can provide?

I am going to buy a 7-port USB 3.0 hub, and connect 7 portable HDDs to it, in order to build a RAID 6 array. The hub comes with an upstream micro-USB 3.0 type B port, along with an auxiliary power adapter rated at 5V 2A (micro-USB 2.0 type B…
Livy
  • 1,226
26
votes
8 answers

Is there any benefit to plugging a USB 2.0 device into a USB 3.0 port?

I know USB 3.0 is almost entirely backward-compatible, and I know that it introduces a new speed that USB 2.0 devices aren't capable of, but is there any advantage to having a USB 2.0 device in a USB 3.0 port? Though I'm interested in if it would…
Nich Del
  • 398
22
votes
6 answers

Can two drives connected to a USB hub bypass the computer when sharing data?

If I connect two usb drives to an external USB hub and I copy data from one drive to the other, does the data go through computer? Or will the data be managed by the USB hub? Does this have some performance benefit?
IAmJulianAcosta
  • 933
14
votes
3 answers

Can I connect USB-C display's USB hub to a PC via USB 3.0 to female USB-C adapter?

As I need to buy a new display anyway, I wanted to make my life easier with an USB-C one cable connection to my laptop (Razer Blade Stealth, it shouldn't matter for the question though). Let say I would pick DELL S2718D display. A relevant piece…
topr
  • 702
13
votes
5 answers

Laptop won't wake from sleep when external Keyboard and Mouse are plugged in via USB Hub. How to fix?

We have an ASUS Zenbook UX305FA laptop running Windows 10 that is able to be woken from sleep with an external Keyboard and Mouse when they are plugged-in directly into their individual USB ports. However, after plugging in a USB Hub and then…
ProgrammerGirl
  • 303
11
votes
4 answers

Does USB C Power Delivery also support data transfer?

You can buy many hubs on Amazon which have a USB C PD port that supports up to 100W of power. However, data transfer is usually not mentioned. If I wasn't interested in using this port for power, could I use it for data transfer, or can I only use…
Oion Akif
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8
votes
2 answers

Is there a technical reason why there aren’t any basic USB Type-C to USB Type-C multiport hubs?

Not asking for shopping advice, but simply to ask that after spending more time searching for this kind of thing than I expected, it seems the main type of USB Type-C hubs out there translate/convert a USB Type-C connection into multiple USB A…
Giacomo1968
  • 58,727
7
votes
2 answers

How many devices can be plugged into a USB hub, and how is power distributed amongst them?

Is it possible to connect a USB hub to a hub that is connected to a hub and a hub and.. and.. and to a laptop? I was thinking there are bound to be some "overhead" like if without the hub we have 100%, with the hub we lose 1% to overhead and have…
Pacerier
  • 28,143
5
votes
3 answers

How to test power capabilities on USB 3.0 hub?

Salvete! I recently purchased a USB 3.0 hub and, since it didn't come with a power adapter, I acquired one separately. I am attaching it to a computer with a low-output power supply, so it is necessary that the USB 3.0 hub provide its own…
bgmCoder
  • 1,918
5
votes
2 answers

How Do USB 3.0 Hubs And USB Extension Cables Effect Latency, If At All?

I currently have three peripherals (mouse, keyboard, Wacom tablet) all wired to an individual USB port on my computer. They also each have their own 6ft USB extension cable (passive) because the computer is a little far away. They are each USB 2.0…
Matthew Jendrasiak
  • 75
5
votes
2 answers

Is single/multi TT important by USB3 hubs?

I'd like to buy a new USB3 hub to replace my old one, which has only 4 slots. By USB2 hubs single TT was a problem, because USB1 devices could slow down the entire hub. Is there something similar by USB3 hubs? Can too many USB2 devices slow down…
inf3rno
  • 1,195
5
votes
3 answers

Does USB-C hub need external power?

The standard USB 2.0 and USB 3.0 hubs may not get sufficient power through one USB port to power all devices attached to the hub. Therefore, an externally powered USB hub is usually recommended when plugging in many power-hungry USB devices. USB-C…
mindlessgreen
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4
votes
3 answers

What is the power supply cable connected to most USB hubs called?

I recently bought a USB 7 Port Hub with external power supply, but unfortunately it got burnt out. I have searched everywhere using the keywords that I know but unfortunately can only find diy guides and hubs with supplies. The original cable that…
Sanr
  • 41
4
votes
3 answers

Does an INTERNAL USB hub affect performance?

I searched a little bit on the subject, but I couldn't find any clear answers, so I'm asking this question: Will the performance of a USB hub connected directly to the motherboard be shared between the devices plugged into the hub? How is the power…
Amine Kchouk
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