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107 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 ...
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1answer
30 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 ...
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1answer
237 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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158 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 ...
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1answer
512 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 ...
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0answers
161 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 ...
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0answers
277 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 ...
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0answers
284 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 ...
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38 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 ...
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24 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 ...
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262 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 ...
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145 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 ...