USB 3.0 (SuperSpeed) is a USB specification that can transmit data at up to 5 Gbit/s.

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8
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3answers
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Are USB 3.0 ports yellow?

My laptop has a yellow USB port. Is it USB 3.0?
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1answer
38 views

Is it safe to power a 140mA laptop cooler pad off a USB 3.0 port?

I have acquired a laptop cooler pad that connects to a USB port for power. The problem is it draws 140mA. That's more than a dumb device is allowed to draw off USB 2.0 (max is 100mA unless the device ...
4
votes
1answer
54 views

What connectors do USB 3.0 devices use?

This USB 3.0 HDD case has something that looks like a USB A receptacle requiring an A-A cable, something quite unusual. The only alternative that Amazon.de is offering, has the 10-pin USB 3.0 ...
2
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2answers
37k views

What does the BIOS setting XHCI Pre-Boot Mode do?

I have a BIOS setting called XHCI Pre-Boot Mode. If I have this enabled USB devices which aren't plugged in at boot are never recognised, if I set it to Disabled then USB devices work normally. The ...
0
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3answers
2k views

How do I connect two computers using USB 3.0?

I know this question exists, but it's about USB in General. Mine is about USB 3.0 and newer specifically. USB 3.0 specification introduces the feature known as direct host-to-host connection with ...
0
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0answers
34 views

How do I enable UHCI USB support in Windows 7?

I've got a USB Fight Stick controller (Madcatz SFIV TE) that only supports the UHCI USB standard. I've done some research online that led me to find out that USB 3 ports support this standard, but in ...
2
votes
1answer
811 views

32GB Flash Voyager doesn't work on new PC with USB 3.0

I have recently built a new PC and my pendrive is not working correctly. When I plug it into the USB port (I have only USB 3.0 ports), Windows recognizes it and lists it in Explorer, as usual. I ...
2
votes
3answers
1k views

Force a single USB 3.0 port to work as USB 2.0

I have several Dell XPS 13 machines that exhibit intermittent failures of the left USB 3.0 port, as described in this thread. I have lost data to silent corruption/disconnections on several external ...
2
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1answer
46 views

USB3 HDD does not spin down after selecting “Eject drive”

my external WD drive connected to USB3 on home PC spin down after selecting "Eject drive" but it does not spin down on work PC (on USB3 as well). Tried to find answers in Google but I could not. I ...
0
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0answers
77 views

USB 3 issue with asus t200 transformer (windows 8.1)

I hope someone can help. I have a new asus t200, which has one usb 2 and one usb 3 port. I have tried three different usb 3 external drives - and the computer doesn't recognise them - though they ...
0
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1answer
104 views

USB Flash Drive became read-only during use

I was using IntelliJ when my USB flash drive suddenly wasn’t being recognised and IntelliJ became unresponsive. I tried safely removing it but it wasn’t showing up there, so I force closed IntelliJ, ...
30
votes
9answers
170k views

How to find out which USB port is USB 3.0?

In my laptop (a Lenovo y470 ) there are three USB ports. One of those is USB 3.0 others are USB 2.0 . I do not know which one is what. When I copy data from my External HDD it transfers at 38MB/s from ...
0
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1answer
75 views

not getting USB 3.0 speeds with multiple USB 3.0 sticks on my laptop

My Core i5 laptop is behaving strangely on windows 8.1 - I think on windows 8 it didn't have this problem.. but I have 8.1 now. My USB3.0 flash drives are all copying at 10 to 13MB/s a second , it ...
0
votes
2answers
3k views

How to get ExpressCard 34 USB3 working on Yosemite Apple Mac OS X 10.10 (via 1 or more of: kexts,signing or choosing compatible models/chipsets)?

(Rewrote question title about overall problem and given my own answer below). (note I want to try this manual approach first before using MultiBeast (failed to do the driver install (failure message ...
9
votes
2answers
8k views

Will a mobile phone charge faster if plugged into a USB 3.0 port

Will a phone(or any device for that matter) charge faster if it is plugged into a USB 3.0 port compared to a USB 2.0 port? I know to assist charging you can turn features off(with flight mode) or ...
0
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0answers
351 views

Windows 7 guest on Mac 10.10 host VMwareFusion USB Drivers not installing

I have a MacBook Pro 13" mid 2012 model running OSX 10.10 yosemite which has two USB 3.0 ports on it. I have VMwareFusion installed, and have windows 7 as a guest operating system. The driver for the ...
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votes
1answer
157 views

USB 2.0 not recognized by USB 3.0

My old HP Laserjet 1005 USB 2.0 Printer is not recognized by my new DELL USB 3.0 socket. Printer is too good to replace.
0
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1answer
561 views

Looking for external portable hard disk drive with both Superspeed USB3.0 AND eSATA? [closed]

All I can find is: eSATA and USB2.0 not USB3.0 eSATA only USB3.0 only Enclosure/caddy with USB3.0 and eSATA for housing bare hard drive: ...
0
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0answers
25 views

What defines maximum numbers of USBs connected?

By default maximum possible USB devices connected is 128. Different motherboards support different numbers. Most of them do not go that high. But how is that number defined? I mean for example x86 ...
0
votes
1answer
251 views

Why are transfer speeds so slow from USB3 SD card to PC?

I guess I'm trying to pinpoint what chokes the transfer speeds in general: Situation is - Brand new Dell E7240 with USB3.0 ports. Copying from a USB3.0 capable card reader (Lexar). Lots of ...
0
votes
1answer
62 views

Will a 10 slot USB3 hub provide full bandwidth for 10 USB2 flash drives, and if not, where is the bottleneck?

I am wondering if a USB3 hub connected to a USB3 motherboard could sustain 10 USB2 flash drives being used simultaneously to transfer data at full bandwidth. Theoretically USB 2 speed is 60 MB/sec ...
0
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0answers
145 views

laCie 1TB USB3.0 not detected in windows 7 64bit

I have a problem with my laCie rugged USB3.0 1TB. When I connect it via USB2.0 it works correctly according to USB2.0 specifications. Recently, I have bought a USB3.0 adapter and when I connect the ...
0
votes
2answers
396 views

Windows 8 / 8.1 USB file transfer consistently freezes whole system

I'm running Windows 8.1 Pro (64 bit) on a Gigabyte GA-Z77X-D3H (rev 1.0) motherboard with a Samsung 830 SSD and 8GB of RAM. All is normally well in general day to day use. However, when I plug in a ...
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0answers
34 views

Daisy chaining capacity for USB 3.0

I am trying to figure out how many USB 3.0 devices I can daisy chain together and provide an adequate (5V) power supply to. For instance Device #1 (D1), plugs into my laptop and my laptop keeps it ...
34
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3answers
192k views

Speed comparison between USB 2.0, USB 3.0 and SATA and Firewire

Which is fast, faster, fastest? I would appreciate a slowest to fastest list including USB 2.0, USB 3.0, FireWire 400, FireWire 800 and eSata.
0
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0answers
44 views

Can I boot / install windows 8.1 from usb 3.0 with usb 3.0 media?

As far as I know it wasn't possible to install win 7 from usb 3.0 hub. It faild every time, I guess due to some boot or driver problem. If it could be possible for win 8/8.1 I would buy usb 3.0. Can ...
0
votes
1answer
195 views

Slow performance running VM Player image (virtual machine) on USB3.0 external drive

I have a virtual image I'm trying to run over USB3.0 on an external drive using VM Player. The performance is very slow and I cant seem to find the culprit. I've ran some benchmarking tools and my UP ...
0
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0answers
117 views

USB 3.0 flash drive has slow performance after reformatting

I bought a USB 3 flash drive, and after a few weeks of using it (happily), I needed a bootable linux and that was the only thing handy. So I reformatted it and worked through all that jazz. But I'm ...
3
votes
2answers
19k views

Toshiba Satellite P755D USB 3.0 Drivers Missing - Windows 7 Professional

I bought a Toshiba Satellite P755D recently and installed Windows 7 Professional on the machine. It runs great. But I noticed the exclamation point in the yellow triangle icon in the Device Manager ...
0
votes
2answers
2k views

What would happen if only one of the Y-Cable USB connectors is connected?

I own an external HDD and it is shipped with a USB 3 Y-Cable pictured below. I know that the auxiliary branch is to provide sufficient power for the device to work properly. My question is what ...
0
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1answer
91 views

USB keyboard works in windows but not in games

I have a problem with a new PC i just built. It has 6 USB3 ports on the rear, and no USB2 ports. When I plug my Logitech G15 v2 in the rear USB3 ports it works fine in both BIOS and windows - ...
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1answer
43 views

USB 3.0 to USB 3.0

I have an external HD with USB 3.0 and a laptop with a USB 3.0 port. Can I connect the two safely to transfer data and watch films stored on the HD for instance? If so where can I buy such a cable to ...
11
votes
2answers
5k views

Does a USB 2.0 device connected to a USB 3.0 hub slow down the hub to 2.0 speeds?

At work, I want to plug all my USB devices into a single USB hub so I only need to plug one USB cable, external display, and the power cable into my laptop. I have some USB 3.0 devices and some ...
1
vote
1answer
65 views

Using USB 2.0 devices on a USB 3.0 hub

I currently have a 7-way USB 2.0 hub. However, when any other device on my hub communicates with the PC (especially my external hard drive which is USB3 compatible), the external sound card stutters. ...
0
votes
1answer
89 views

Best Way to Connect 3 Computers to Peripherals

I'm trying to find my best, low-latency option for connecting three computers. Generally, this wouldn't be an issue, but I see no way to do what I'm looking to do without having to plug/unplug cords ...
0
votes
0answers
327 views

LaCie Rugged Triple USB 3 drive not mounting properly on Windows 8.1

I have a 2011 LaCie Rugged Triple USB 3 drive that I use with two computers: my Windows 8.1 PC and my MacBook Air. What is working / other facts: Drive has two partitions: one NTFS, one HFS+ USB ...
0
votes
1answer
100 views

Do I need a special microUSB cable to take advantage of my USB 3.0 port?

I often transfer files from my computer to my phone using a micro-USB cable. However, my computer has USB 3.0 ports and I don't know if I'm taking full advantage of it using a regular micro-USB cable. ...
23
votes
5answers
54k views

Verifying USB connection speed (USB 3 or USB 2?)

I've purchased several new USB 3 capable drives to use with my new (USB 3 capable) laptop. They connect ok but I suspect they're silently falling back to USB 2. The sustained transfer rates I'm seeing ...
1
vote
0answers
59 views

Usb ports connecting and disconnecting

I know this is not the place to ask about hardware problems and solutions, but I can't search on google anymore... I've been for over 24hours searching on google about my problem and trying to get a ...
6
votes
2answers
16k views

How seriously does cable length affect USB 3.0 transfer speeds?

Recently I've been thinking of upgrading my computer with some USB 3.0 ports. However, the problem is my computer is some ways away from my desk so that would mean I would need a long cable, ...
0
votes
1answer
883 views

USB 3.0 not working at full speed on Windows 8

I have an Acer p243-m which came with Windows 7. The USB 3.0 port worked fine after installing the driver. But after I clean installed Windows 8, the speed dropped from say 100MBps to 28MBps. How ...
40
votes
6answers
10k views

Using USB 3.0 to speed up transfer between USB 2.0 devices?

I've noticed that transfers between USB 2.0 drives are usually very slow. From what I understand, this is because all USB 2.0 devices connected to the same USB 2.0-host share the same 480Mb/s of ...
0
votes
1answer
933 views

Why doesn't my wireless keyboard work with my USB port replicator?

I have a Lenovo x240 with Lenovo USB 3.0 Dock (port replicator) and Lenovo Ultraslim Wireless Keyboard and Mouse. The keyboard and mouse work fine when plugged in to the laptop directly, but not when ...
0
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3answers
41 views

USB Thumb Drive partioned oddly

Somehow my 32gb Lexar thumb drive got partioned very strangely, here is the output of lsblk: sdb 8:16 1 29.8G 0 disk ├─sdb1 8:17 1 44M 0 part /media/removable/LEXAR ...
10
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3answers
17k views

How does one install Windows 7 using USB 3?

I want to install Windows 7 onto an SSD from a USB 3 drive, however it won't let me boot using USB 3, however it does work using USB 2. I guess that's because Windows PE doesn't have the needed USB 3 ...
0
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1answer
402 views

USB 3.0 hard drive in usb 3 port only recognized as usb 2

Today, I bought a Sabrent CP-4PTU USB 3.0 PCI Express Controller. I installed the latest software from the website, and after a reboot, I plugged in a USB 3.0 hard drive into the controller, and the ...
0
votes
2answers
350 views

Intermittent USB 3.0 access - How do I troubleshoot?

I've got a WD Passport hard disk with "superspeed" USB 3.0 support. When I use my USB 3.0 flash drive (this is a Lenovo X220 laptop), USB 3.0 consistently works. But when I use the passport drive, ...
2
votes
4answers
18k views

USB 3.0 ports backwards compatibility problems with 2.0 devices?

I see some info on the net that suggest that I should be able to get my USB 2.0 devices to work in 3.0 ports. I only have two 2.0 ports on my new computer, and six 3.0 ports. I have installed ...
0
votes
1answer
94 views

How can I be sure that I've plugged a device into a USB 3 port?

I have a number of USB ports on my computer, some USB 2 and some USB 3. I want to plug a device into a USB 3 port. Unfortunately, they're all black so I can't use the usual "USB 3.0 ports are blue" ...
0
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1answer
295 views

will any usb extension cord work with usb3? [duplicate]

I know that with 1gbit ethernet 100mbit ethernet cables won't work. You have to use cables designed for 1gbit. What about with USB3? If I have a ten year old USB extension cable (ie. one that was ...