USB stands for Universal Serial Bus and is a general and universal interface standard for connecting computers and electronic devices.

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ethernet usb adapter ax88179_178a, ARP captured with 62 bytes

While debugging some l2 protocols on an ethernet usb adapter (chipset ax88179_178a) I noticed 2 bytes from Frame Check Sequence (FCS) are promoted to user data. Dump of the arp frame 60 bytes is now ...
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6 views

W7 usb port not working after W10 dual boot

So i got a pc with 3 HDD. Ive got Windows 7 running perfectly on one of them. Some day ago i installed Windows 10 Technical Preview on my second HDD. Windows 10 also work perfectly but when i boot my ...
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1answer
27 views

USB 3.0 not going past the speed of USB 2.0

I have a WD My Passport Ultra, which I know can reach 100MB/s easily while connected to USB 3.0 port, but I'm getting 40MB/s on 3.0 and 2.0 ports. What may be the problem? I run Fedora 18 (32 bit (on ...
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3 views

Restore partitions on USB drive [duplicate]

When creating a bootable iso image on the usb drive, program imageUSB created a partition on the USB. The problem now is that I cannot restore the USB to a single partition. I am using windows 7 and I ...
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11 views

Turn pre-paired USB bluetooth dongle into generic bluetooth adapter

I want to have bluetooth capabilities on my PC, but I don't have a bluetooth adapter. I do however, have a bunch of USB bluetooth dongles from wireless mice and keyboards, I understand that these are ...
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14 views

How can I use a second USB keyboard for special keys under Linux? [on hold]

I'd like to use a second USB keyboard connected to my box running Ubuntu to generate special keystrokes. I'd like to map those in Vim to very specific actions. What combination of hardware / software ...
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13 views

Windows assigns the same COM port to two identical USB devices

I'm trying to plug-in two identical USB devices to different USB ports on my laptop, but Windows' device manager displays only one assigned COM port for both so I can't distinguish between the two. I ...
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1answer
35 views

Plugging a Kinect 2 in results in cycling error “USB device not recognized”

I just got a Kinect 2 and am trying to run it in Windows 8.1. I've connected it to a USB 3.0 port and it appears to be connecting, disconnecting, and reconnecting itself every 2-3 seconds with the ...
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1answer
24 views

ASUS SBC-06D2X-U Blu-ray Drive Not Showing

I am running Windows 8.1 Pro 64-bit on a ThinkPad Yoga, which as no built-in optical drive. The ThinkPad's BIOS, drivers, and Windows updates are all the latest available. When I connect my ASUS ...
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13 views

Images from usb to pc / emulating usb thumb drive [on hold]

I have a device, which can save files to a usb thumb drive. Can I anyhow get these files straight to my pc automaticly? For example can I somehow emulate USB thumb drive with my pc and connect the PC ...
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17 views

Connecting two ZTE MF667 modems through USB on Windows 7. Is it possible?

I'm developing an application to manage SIM balance for different operators in my country and I'm deciding to use ZTE MF667 one for each operator (I don't have the devices actually), but I have a ...
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1answer
23 views

Cannot mount, partition, format brand new USB

I've recently bought a new TDK 4 GB USB stick, but when I try to mount it (I'm runnning Ubuntu 12.04, but neither in Windows 7/8.1 it works) in various ways Gparted, Disk Utility, simply pluggin it ...
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1answer
38 views

does it mean i have only one usb2 port?

I am planning to buy an external HDD.For this i am trying to find out what type of usb port i have.From control panel i found this following setup .It says in number 5->family usb2 enhanced host ...
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0answers
27 views

How to repair corrupt pendrive?

I have an HP pendrive of 16GB. One day my little brother tried to make a bootable Hackintosh using that pendrive and we had a power cut when the write process was going on (my brother was using Mac OS ...
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42 views

Should a new 64GB USB Flash drive have 64,000,000,000 bytes available and does it slowly decrease this number over time? (internal maintenance, etc)

First regular Hard Drives (spinning disks): When looking details of a brand new hard drives, I've noticed that the available space usually ends with xxx,000,000,000 For example, a 750 GB drive is ...
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41 views

Why some cables charge my phone while the others do not? [on hold]

This is the question—with an answer—that has been bugging so many of us now that we have phones that require more juice than previous generation of phones. My core question: My wife has iPhone 5S ...
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123 views

Why 45MB Unallocated space at the beginning of a Silicon Power Marvel M70 64GB Flash Drive AND Why Drastically different sector counts?

I have a brand new Silicon Power Marvel M70 64GB USB flash drive has 45MB of unallocated space preceding the 58.89GB of available space. I don’t care about having less than 64GB since I know it’s due ...
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13 views

After removing custom driver, Windows no longer detects USB dongle

I have a DVB-T dongle, which I want to use to capture air traffic and to feed data to Flightradar24 (details). For this purpose, I have to stop Windows from trying to install default drivers and use a ...
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1answer
36 views

Why was the USB-A connector not designed to be reversible in the first place? [closed]

Usually a USB-A plug can only be inserted into an USB-A receptacle in one direction. This can be quite frustrating, especially when you need to insert an USB plug blindly. I recently stumbled upon a ...
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1answer
64 views

Why and when does a quick format to FAT32 write different structures to sector 0 on a USB flash drive?

Introduction: For a research project I am trying to write a bootloader to a USB flash drive. After some experimenting, I succeeded to do this. I would like to know how I can reproduce this. What I ...
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2answers
42 views

How to disable USB charging entirely on Windows?

I have a desktop running Windows 7 where I want to forbid people from connecting USB and charge through. I did set the registry value of ...
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11 views

Cannot acces in centos 7.0 in virtualbox any pendrive

System is up to date, I did everything as answered here How to access USB pendrive on using VirtualBox? and have not any results. What could cause such behavior?
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14 views

Recommended way to create a bootable USB including the software used [duplicate]

I have an USB from which I install my OS. Once that's done, I install VS, Notepad++, Paint.NET, SQL Studio and a lot of other stuff that's nice to have. All the stuff, I install manually after the OS ...
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26 views

Windows 7 is not detecting logitech USB mouse

Yesterday, my old Microsoft IntelliMouse died. I bought a new Logitech USB mouse with a cable (no wireless) and connected it to my PC. Unfortunately, Windows 7 does not detect it. I have tried to ...
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1answer
26 views

Does unified Wifi/Bluetooth/Infrared hardware exist? [closed]

I've searched the internet for this but ended up on dead ends every try. I'm looking for hardware that's capable of receiving/transmittion signals using: Wireless (a, b, g, n and ac Dual Channel ...
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2answers
60 views

What will happen powerwise if you plug a USB-C device to another USB-C device?

If you have a USB-C phone or tablet and you plug it into a laptop with USB-C, which device gets charged? Or no charging will occur? People charge their phones through their laptops all the time, how ...
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30 views

Arch Linux UEFI bootable usb installation media

I want to install Arch Linux in UEFI mode, but I fail at booting the installation media in UEFI mode. What I have done so far is: Create msdos partition table on usb key OR create gpt partition ...
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1answer
37 views

WD Black drive mounts fine with USB enclosure but with SATA

I am working on a Linux system that a brand new WD Black 1TB drive has been bought for (for use as a secondary/storage drive.) I set the drive up by first connecting to a spare BYTECC Smart Drive USB ...
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13 views

USB Wifi Adapter

I keep getting kicked off my wifi when using my usb adapter. It seems like it is only when using the adapter while connected to the 5G. But it kicks the whole router down, so that everybody loses ...
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38 views

Do the usb ports (type c) of the new macbook or chromebook have direct PCIe access? Or do we not know yet?

The usb type c standard supports PCIe signals as an alt-mode. Do we know if the type c ports on the latest macbook and chromebook have PCIe access. If they don't or we don't know yet, then what is ...
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1answer
30 views

3.5" FDD to SATA / USB

Motherboards these days don't tend to have floppy cable/bus pins. It's a bit "old hat" I suppose. I have such a motherboard, but would like to connect an internal floppy drive to it. It's the sort of ...
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120 views

How do I fix crackling in my audio seemingly caused by my USB Logitech trackball mouse?

My USB mouse—an unknown trackball model made by Logitech—has, as of a recent system rebuild (I used Windows 8’s “refresh your computer” feature), begun making my audio crackle. I did some research and ...
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1answer
24 views

Does using zfs with (mirrored) usb drives have any drawbacks except speed?

I'm interested in using zfs with usb drives for storage on a linux desktop machine. I already have a lot of large external drives so this will be cheaper than buying new internal drives. I might have ...
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2answers
53 views

Run Linux dist from bootable USB on Surface Pro 2

I'm having issues booting from USB on my Surface Pro 2 with win 8.1 and UEFI. Tried creating bootable USB using LinuxLive and a Linux dist. Also tried creating bootable USB with Easy2Boot, and adding ...
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2answers
26 views

Why is a keyboard with a USB extension cable—which is connected to a hub—not working?

I use an expensive wired USB ergonomic keyboard at work. The keyboard connects to my laptop via a USB hub. Everyday, I have to plug the keyboard in the morning and unplug in the evening. It’s USB ...
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21 views

Is there a stand-alone, non-network-based media player that can read PDFs? [closed]

Is there a stand alone media player that can read PDFs? Something akin to the Micca Speck Ultra-Portable Media Player, WD TV Live, etc…? I’d like to find something that can read PDF’s and text files, ...
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23 views

Changing Harddisks and recovery media

I have a Lenovo Thinkpad whose hard disk has started giving errors (but still works). Lenovo is replacing the HD under the 3 year warranty. However, they say the OS and data is my baby, they have ...
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2answers
886 views

Is there any way to prevent a USB flash drive from being written to? [duplicate]

I see lots of articles about preventing a specific computer from writing to a USB flash drive or preventing malware from getting from a USB flash drive to a computer; what I can’t find anything for is ...
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1answer
16 views

Joystick with Remote Desktop

Why can't I use my Logitech Extreme 3D pro joystick work through remote desktop, as does a USB mouse or keyboard? Joystick is connected to Laptop A (can be running either Windows XP or Windows 7). I ...
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1answer
12 views

Detect number of USB controllers

Is there a way to detect thru OS the number of internal USB controllers and what connector/port is assigned to what controller when more than one controller is available ?
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1answer
28 views

What read/write speeds must an external storage have to make it worth putting a swap partition there? [closed]

This question is for my Raspberry pi A+ (256MB RAM) which is on Raspbian Linux. I have no qualms about using a flash drive and using up its read and write cycles if need be. I'm just curious on what ...
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1answer
27 views

Is OTG a hardware feature in smartphones? [closed]

Smartphones have OTG micro-USB that allows you to stick in USB drives straight to the phone with a connector. Some phones such as many Windows phones do not have this. Does OTG require any extra ...
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1answer
30 views

Connect an RGB LED strip over USB [closed]

I am building a PC and wanted to do custom lighting with an RGB LED strip. I could connect an Arduino to one of the internal USB headers but decided that I wanted to try and connect the power to molex ...
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35 views

USB SuperSpeed device failed to peer?

My motherboard is a Mitac PD10BI which claims to have two usb controllers, one 2.0 and one 3.0. Whichever ports I plug into the usb devices all go onto the first controller and I get the 'not enough ...
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33 views

Why external harddisk are cheaper than internal [closed]

If you look in any online shop you can see that usually external usb harddisk are cheaper than internal hdd with the same size. I thought they where different/older model. But online i found ...
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24 views

3TB external suddenly becomes 746GB unallocated [duplicate]

I have an external drive my main drive is a 1TB slave is a 3TB which I used the GPT to get it there my USB drives are in a dual enclosure one being a 1TB the new one I just purchased only shows 746 ...
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1answer
19 views

Unable to allocate partitions to USB

I recently received a USB. It worked fine for a while, then I formatted it using the Format New Disk menu in Windows. Now, it has a lot of unallocated memory. I know this is not a fake USB drive ...
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19 views

Connect USB 3.0 to Linux Guest in VMWare Player

I need to connect a USB 3.0 external hard drive to my Ubuntu 14.0.4 guest. USB 2.0 devices work as expected, but USB 3.0 devices do not appear. I have enabled USB 3.0 in the virtual machine settings, ...
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1answer
68 views

Built-in display brightness can't be changed and one USB port not working after upgrade to Yosemite (10.10.2) on Macbook Air (early 2014)

Started happening right after I upgraded from Mavericks to Yosemite. I tried changing the brightness from the keyboard and from the System Preferences and it doesn't work either way. The brightness ...
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1answer
22 views

How to estimate the time needed for transferring files between internal and external drives?

My laptop usb port is usb 2.0. my external hard drive is usb 3.0. Wikipedia says Due to bus access constraints, the effective throughput of the High Speed signaling rate is limited to 35 MB/s or ...