I found a USB cable with three male connectors from somewhere. I'm sorry I don't know what it's called. I've never seen any such cable before. Tried searching on the Internet and many people, couldn't find any answers.  What may be the possible use(s) of this?  A picture of the cable:
122558
I was reorganizing my desks and found two different triple-ended USB cables. I don't know their origin or purpose. I have never seen triple-ended USB cables before. What are they used for?
107692
Is there any harm in using a USB data cable of any other phone (say LG) for charging up a Nexus S? "Any harm" here means will it adversely effect my battery life or the Nexus S device in any way?
4995
I want to use a very long USB cable to place a webcam in a different room. The maximum length that I found was five meters.   What is the maximum length of a USB cable? What is the maximum length achievable when using USB extension cables?
114026
Might be super obvious, but I've not encountered one of whatever this little dude is before:    I figured some sort of vacuum tube, but no idea beyond that. The two poles aren't linked. Found inside a heating control panel. Help would be greatly appreciated!
78671
Here is a picture of two of them:    I searched for these connectors in  and  for an hour, but couldn't find anything similar. Can you please name these connectors for me and/or give a link to their subcategory in one of these part seller websites?
53183
I have some USB 3.0 ports on my motherboard which can deliver up to 900 mA of current I believe.  If I plug in a USB 2.0 cable, I can still get up to 900 mA right? I have some devices that uses USB charging and outputs from 1A to 2A but I'm not sure if the cable provided is a factor or not since I'm just using a generic USB cable for this.
7328
I have the Late 2013 Macbook Pro, which has two USB 3.0 ports and two Thunderbolt 2 ports. I currently use both USB 3.0 ports and one TB2 port. I want to connect a third USB 3.0 device to the machine, but I don't want to use a USB splitter on one USB port as I'm concerned the devices would draw too much power from the bus. I have no current use for the second TB2 port and I would love to be able to use it for this purpose.   Browsing extensively online, I've found numerous docks, such as , that connect via a Thunderbolt cable. This would work, but it's an expensive, 'bulkier' solution (and not the one I'm looking for).   I'm aware that a USB 3.0 device wouldn't be able to take advantage of Thunderbolt's I/O speeds, but it's certainly compatible, which is all I'd need. After all, Apple even sells a . I also know that Thunderbolt is not only used for digital video purposes (along with the TB > Firewire option, there exists ).   There are almost no Thunderbolt to USB 3.0 cables/adapters on the market. I'd think this hardware would be more prevalent given the prominence of USB devices out there. What adapters are available for OS X?
87952
If the host computer for an USB device doesn't provide enough power for a device which has no dedicated power port, can I connect the power-only-plug of a Y-USB-cable to an other computer, an USB-charger or even a regular mobile charger? I'm afraid this could damage some of the devices.  Edit: The device in question is a USB Hard drive (Samsung S2 Portable 640GB (but on the back it's written to use 0.85A)) which is supposed to work whit just a single USB port. It did so well on a other laptop and whit some cables even on my actual net book back in Europe. But now in Malaysia it works only some times (I still try to figure out what the conditions are) and then it stops working after a while (maybe when it goes to power save mode). I heard from others their hard drives need one more power plug here in Malaysia to but can't imagine why...
19942
I'm planning to use USB port for an application(from a device to a PC) but the distance between the device and the PC will be around 15m. The recommended maximum USB cable length is 5m.  How can I buffer the data without loosing any information, safely? Would a USB hub work?
52541
I was messing around with a USB camera. I wanted to change the cable because is trimmed but as I was cutting it I saw a small thing (image below). As I was trying to cut the casing and see what it has inside I saw a spark. I tried to connect it with another cable but I don't know if I'm gonna damage the camera or the USB port.    What is it and can I connect the camera without it?
26904
(I am located in the US)  I'm taking apart a cable to use for AC in a project.  When I stripped the ends, I saw the expected Black/White/Green colors to indicate hot/neutral/ground respectively.  However just to be sure (before using the cable) I traced each with a multimeter.  What I found was as below, however their positions on the plug are REVERSED from what I would expect to find in an AC plug in the USA. (As indicated in any number of the results from e.g. )  Am I correct, that I should be using this cable's BLACK wire for neutral, and it's WHITE wire for hot?
97877
What are the options to add one or more USB 3.0 port to a laptop? The only way I seen so far are USB 3 expresscard adapters but all of these adapters stick out quite a lot from the laptop and have power/bandwidth limitations.  Update: after some more research I found there are smaller 1 port (PhotoFast GM3000EX ExpressCard) that do not stick out of the laptop at all after plugging in. Looks like these are not available in US yet but I'm sure it's coming soon.
57508
I recently bought a laptop. While connecting it to the AC mains for charging it up for the first time, I wondered what would happen if a power surge occurred while my laptop was connected to the AC mains.  I asked a few of my friends who told me not to worry.. the adapter I use would protect my laptop. Still the doubt lingers in my brain..  So here's my question: should I use some form of stabilizer for my laptop? My question might be simple and downright stupid, but I thought I'd ask it anyway, as my electronics knowledge is literally zero.  Note: I live in India, in case you need that knowledge.
85704
I've bought a 12VDC pump for a CNC machine I'm building. I want to get a connector that will fit this plug so that I can run it from my power supply source.  The problem is that I don't know what these connectors are called in order to buy a suitable plug.  Anyone know what this type of connector is called?
21124
Stumbled across what appears to be a 15pin serial cable when cleaning out the equipment room today.  I'm familiar with 25 pin and  Any idea what these are commonly used for?
111932
In quite a lot of PCBs that I have seen, they often have these small metal bars going across from one point to another.   Here is an image of what I am talking about. In this example it is a charger:   J2 and J3 are what I am talking about  For reference, here is the other side of the PCB:  So,    What are these called?  What is the point of these? Why not just use tracers in the board or a wire?
22633
Can I charge computers by inducing 5-volt into their USB connectors? Is this possible? I noticed that when my EeePC 900 is off but plugged in charger, there is power coming out of the USB port. Can this be a sustainable way of charging a PC, or a flaw in design?