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0answers
21 views

USB host controllers broken on every reboot

Something happened (including Windows Updates?) and now every time I reboot, most of my USB host controllers/root hubs are not working: The broken ones say: This device cannot start. (Code 10) ...
0
votes
1answer
37 views

Why does my generic USB hub not allow my PC to find a second plugged-in flash drive?

On my Dell Model i3531-1200BK (running Windows 8.1) I am using a 4 slot (no name) generic USB hub that works fine with one flash drive. But when a second flash drive is inserted, the laptop starts ...
17
votes
5answers
4k views

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 ...
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0answers
133 views

USB hub damages an external hard disk (and storage devices) on use attempt

I recently bought a USB hub because I find myself needing more than just two USB ports on my prebuilt laptop. However I come to the problem that when I use an external hard disk with it I cannot ...
0
votes
1answer
1k views

Can't a USB hub power keyboard and mouse at same time?

I'm trying to use a Dell mouse and keyboard via a single USB port using the USB splitter hub, but the devices seem to misbehave. Just one of the devices work when I connect both. I figured out it's a ...
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0answers
33 views

Are there problems with using USB Graphics Hubs?

I'm interesting in purchasing a Hengedock (docking) station for my MBP. I asked them : Is it possible to have dual monitor support And they replied You can connect dual ...
0
votes
1answer
181 views

USB 3.0 hub seems to freeze startup

When my USB 3.0 hub is connected, my Ultrabook has start-up problems. The Windows logo appears momentarily then the screen goes black and freezes completely. If I disconnect the USB 3.0 hub and force ...
0
votes
1answer
258 views

USB 3 Hub to drive dual monitors from Laptop @ 2560 x 1440

Taking this USB 3.0 Docking Station with Dual DVI/HDMI/VGA Video (sd3500v) as an example. I'm trying to find out what hardware configuration/spec a laptop would require to allow it to drive two Dell ...
0
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1answer
37 views

Maximum number of keyboards you can attach

I need to attach 16 keyboards to a computer, to use as a game show buzzer system. Is that possible? I know the theoretical maximum number of USB devices allowed is (2^7)-1=127 but will there be any ...
-1
votes
1answer
800 views

Only any one port in the 4 port usb hub is working

I recently bought a 4 port usb hub. I happened to find that only any one port among the 4 ports are working in my laptop. (i.e. all ports are working but only one at a time) Brand of my laptop is ...
0
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0answers
311 views

Can I power a nexus 7 through a powered USB hub?

I am building a setup to use my Google Nexus 7 as a SNES. I have the games figured out, and my plan is to plug a USB hub into my OTG cable which is plugged into the device. In the hub, there are two ...
0
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1answer
294 views

Do USB devices draw current from the computer if a powered hub's current “runs out”?

I have a few heavy duty devices and a powered hub and I wonder what's the flow of current in those things.
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2answers
109 views

MacBook Air Needs a USB Hub

I'm suffering from USB creep and need the maximum number of hubs possible. Should I get a USB 3.0 rated hub even if my devices are not USB 3.0? In other words, does the added speed of 3.0 allow the ...
0
votes
2answers
247 views

USB Hub questions

I have a couple questions about usb hubs: If I only have one device connected to it, is the speed as fast as if I plugged it in directly to computer? If I have 2 flash drives plugged into and copy ...
2
votes
2answers
892 views

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 ...
0
votes
0answers
158 views

Why doesn't my computer see all USB devices (27 3G modems)?

I have a (Dell) laptop with 3 USB ports. There are two USB hubs connected (13 ports each, hubs are powered by external electric source); so in total there are 27 USB ports (13+13+1). Each port has a ...
0
votes
1answer
177 views

Installing an internal Delock USB hub

I am installing an internal Delock 4-port USB 3.0 hub, so that I can have USB ports on the front panel of the machine. I have plugged in the 4-pin cord, but I have a blue cord that has a USB contact ...
2
votes
2answers
2k views

Ten external hard drives through a USB hub

I have bought a 10 port USB Hub with power, and attached that to one port at the back of my PC. Connected to the hub are ten external hard drives. Is this set-up safe, or can it do damage to my ...
1
vote
1answer
129 views

Data Integrity with Desktop External HDD connected to daisy chained Dell Monitor USB hub

I have two Dell U2412M monitors, both of which have USB hubs built into them. I have one of those hubs connected to my MacBook Pro directly, and that hub has a webcam plugged into it. I want to ...
0
votes
1answer
209 views

Differences between “industrial” and “home” usb hubs? [closed]

I suspect that some of my USB issues are related to the hub that I am using, and I did some research on "industrial" USB hubs. So far, it looks like these hubs offer the following major differences: ...
1
vote
1answer
290 views

inconsistent USB connection between mobile and computer - lack of power or faulty hub?

I am using a four port cheap USB hub, plugged into a GoFlex Home on one side, with a Micromax Q5 mobile on the other. The only other device plugged into the hub is a flash drive, which functions ...
1
vote
3answers
1k views

MIDI Over USB-Hub: Latency?

I am connecting an NI Maschine (hardware) over USB to my Macbook Pro. Right now I'm using a USB 2.0 powered hub (by DLink or Belkin, depending). It seems fine, but these things can be hard to detect. ...
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votes
1answer
1k views

What is polarity for an unmarked USB hub?

On my USB hub where the power supply plugs in, the polarity is unmarked (I got it used, from my brother's friend). I need to know what the polarity should be. I don't think it makes a difference ...
2
votes
1answer
349 views

Why does my data card not work with USB-hub for 2G network

My data card works fine with 3G networks. My laptop has only two USB ports and both are too close to connect a wide data card and a hub for mouse and keyboard. As for the make/build: Windows ...
1
vote
1answer
678 views

Powered USB Hubs vs. non-powered ones for external hard drives, sound cards, etc?

I am looking into getting a D-Link or Vantec powered USB hub, but I am not sure if it will solve my current problem - I have an external HD dock (for 2 hard drives), external sound card (Presonus ...
3
votes
2answers
1k views

computer doesn't boot when wireless keyboard/mouse connected through usb hub

im using a wireless keyboard and mouse (MS 6000). when the wireless receiver was connected directly to the computer case everything worked fine (i had to enable some USB related setting in the bios to ...
2
votes
0answers
177 views

Why would attaching a USB hub affected the performance on a Mac?

My brother-in-law bought a 10 port active USB hub and connected it to his iMac(it's couple of years old). Over the course of about a week he noticed that his computer's performance has slowed quite a ...
1
vote
1answer
251 views

Is a 2-Port USB 2.0 Hub faster than a 7-Port USB 2.0 Hub

I have a computer with about 6 external hard drives connected, however it's died and i'm replacing it with another computer with only 4 USB 2.0 ports. I have a 7 Port USB 2.0 Hub that is connected to ...
1
vote
0answers
299 views

USB Hub powers down in sleep mode on Win 7 x64

I would like the USB hub to remain on in sleep so I can wake up the laptop from an external keyboard and mouse. I have set all the device drivers by unchecking allow this device to be powered down ...
2
votes
0answers
297 views

USB Hub vs. Dockinstation USB vs. Laptop USB

I recently had thougts about my current setup in my office, especially about the UBS ports distribution. Here's my setup: I have a Lenovo T410 docked to a Lenovo Dockingstation Series 3, that ...
0
votes
1answer
4k views

Driver required for USB-3 hub support on Windows 7?

I just purchased a Koutech HU-430 4-port USB SuperSpeed hub. When plugged into a USB-3 port using the included USB3 A/B cable, Windows detects it as a "Renesas Electronics USB 2.0 hub". Does this ...
2
votes
2answers
7k views

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

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 ...
16
votes
5answers
6k views

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 ...
0
votes
2answers
521 views

USB hub that doesn't suck? [duplicate]

Possible Duplicate: What makes a good and reliable USB Hub? Hi, It could be just my bad luck, but it seems like whenever I have used USB hubs they are completely useless. For example, my ...
2
votes
1answer
452 views

What makes a good and reliable USB Hub? [closed]

I've gone through 2 USB hubs for my laptop and they both seemed to be unreliable. Both of these USB hubs are not powered. If I plug both keyboard and mouse, one of the devices won't work. Or if I ...
1
vote
3answers
531 views

Need a quality USB hub that is able to power external hardware [closed]

What is the most useful USB hub that you have had experience with. I have a Seagate FreeAgent Go that is powered by USB and I want to get a USB hub that is able to provide me with more USB ports and ...