Questions tagged [cable]

In electronics, a cable is 1 or more wires (fibers) bound together and running parallel to each other such that larger amounts of data/current can be transmitted at faster speeds than would be accomplished with a lower amount of wires. A cable can refer to an audio, visual, data, electrical or any other numerous types of cables.

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53
votes
3answers
275k views

Maximum length of a USB Cable?

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 ...
12
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5answers
241k views

Can I use CAT5e jacks with CAT6 cable?

I was wondering if I can use a CAT5e keystone jack with CAT6 cable. I am refering to the parts that terminate a cable where it comes out of the wall. I want to run a 30 ft length of CAT6 but all I ...
17
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6answers
68k views

Can I safely connect the power-only-end of a USB-Y cable to an other power source?

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-...
83
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4answers
68k views

What is that cylinder on cables?

There's always that pesky cylinder thing on every cable I have. What is it? And more importantly, why don't Apple's products have them?
19
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8answers
40k views

Does HDMI cable “quality” actually affect transmission?

I really don't want to pay a ridiculous price for a "name brand" HDMI cable if it doesn't really do anything for me. I'm just curious: now that most transmission is digital (packetized) is there such ...
7
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2answers
7k views

S/FTP or U/FTP when wiring a house with CAT6a cabels for 10GbE?

I'm currently in the process of having my newly built house wired with copper ethernet cables. This setup is supposed to be "future-proof" to some extend (10-15 years) so I do intent to use 10 GbE in ...
5
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3answers
3k views

My computer doesn't recognize the monitor's resolution on some VGA cables, what's going on?

My Mac doesn't recognize my TV's resolution on (so far) 3 VGA cables I've tried but it works just fine using other seemingly old VGA cables. My roommate had the same experience on Mint Linux. What's ...
45
votes
14answers
18k views

How to declutter and organize the cables on and under my desk? [closed]

Computer cables and external devices are a continuous source of frustration for everybody who likes a clean working environment. The more devices you add to your home office, the more disastrous the ...
13
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3answers
79k 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, ...
5
votes
1answer
3k views

Triple-ended USB cables

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?
15
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2answers
57k views

Does eSATA require power source?

I got eSATA slot in my laptop (HP DV-7) + WD 1TB (The exact model: Caviar Green WD10EADS) What I want to know, it's if I need something else except from the eSATA cable. Does the eSATA cable provide ...
8
votes
3answers
40k views

Is there a SATA cable which can connect to multiple disks?

I have a motherboard with just few SATA slots but have to put quite few hard disks in the box, so naturally I easily ran out of free slots. I wonder if there are forked cables (I have no idea what ...
10
votes
6answers
80k views

Maximum/ ideal length of ethernet cable?

What is the maximum and/or ideal length of an ethernet cable? Is there a distance that data cannot be transferred over an ethernet cable, say over X number of feet?
22
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13answers
17k views

Running cat5 cable outdoors

I'm trying to extend my network to an unconnected garage that's about 20 yards away from my house. What's the best way to do this? Is there special outdoor-rated cat5e/cat6 I should use? If put it ...
31
votes
6answers
161k views

How to unplug a network cable that's stuck?

I have plugged a network cable into my PC to temporarily adjust some settings on my router. Now I can't unplug it. The cable is physically stuck in the RJ45 port. I've tried squeezing every part of it ...
5
votes
4answers
7k views

Why do video cables (DVI, VGA) still screw in? [closed]

I guess I could imagine that there was a time when accidentally disconnecting the monitor would have been catastrophic, though I don't see that being the case today. Is it just a legacy holdover that ...
5
votes
1answer
3k views

Home networking: Do I need a patch panel, or just connectors?

Context: My current network layout is as follows: cat cables coming from the walls into a patch panel, from which Ethernet cables are going into a switch, which is connected to a router: An ...
6
votes
5answers
19k views

Extend USB 3.0 cable

I have a couple of new USB 3.0 devices which connect to my USB 3.0 ports via the new "Blue" USB 3.0 cables that end in what looks like a USB 2.0 Type A connector. Indeed, the USB 3.0 devices will ...
1
vote
3answers
1k views

How do I wire a crossover cable to connect two devices together?

I need to make a ethernet crossover cable to connect two devices together. Anyone know the process to make one from scratch?
8
votes
4answers
28k views

Will an HDMI to VGA connector work?

I have a device that has an HDMI output port. The specification says that I can connect it to a monitor that has an HDMI input port (through HDMI to HDMI cable) or one that has a DVI-D input port. Now,...
8
votes
2answers
418 views

What kind of video connector is this, if not VGA?

Can anyone identify this connector type? It is nothing I have seen before, and we have one that is converting from this connector to VGA. It needs to be replaced but with no idea what it is exactly.
5
votes
2answers
15k views

15 Pin Serial Cable?

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?
5
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7answers
15k views

Make dynamic IP address fixed?

I am using Time Warner cable internet service. My IP address changes every couple months. However, I need to access some access limited servers which has firewall rules on it. Is there any way to ...
2
votes
6answers
9k views

HDMI-HDMI cable length

I'd like to connect my PC to an HDTV using an HDMI-HDMI cable. The distance between them is about 8 m; is the length going to be an issue? I'm worried the signal might deteriorate over such a distance....
2
votes
3answers
8k views

Why would I get an electric shock from a VGA cable connected to an LCD monitor?

While arranging cables tonight to prepare to plant a new workstation, I got an electric shock from the VGA cable (that was hooked up to a seemingly good, yet older LCD monitor). Of course, when the ...
1
vote
3answers
782 views

Two power supplies in one machine

I have two hard disks which I would like to use. When I bought the second one I didn't realize that my power supply only had one hard disk cable. Is there any way I can still use my second one, like ...
1
vote
4answers
11k views

Why would you connect a 15-pin VGA connector to a 9-pin DB connector? [closed]

Anyone have any idea what one would connect with this cable? Going from a 15-pin VGA connector to a DB9 is very odd. 1.5M VGA HD15 Male to DB9 Pin Male Adapter Cable White The reason I ask is ...
0
votes
1answer
578 views

Under what circumstances will a passive HDMI-to-VGA adapter work?

I have bought a no-brand, passive HDMI Male to VGA Female adapter, to link up a PC with a more dated monitor. It did not work. After doing some reading, I have learned that buying such an adapter is ...
0
votes
1answer
142 views

Using Isolated Coax Cable as Ethernet Connection?

Sounds possible, but haven't found anything that's affordable or that looks legit that can achieve this in ($10-$50 range) Basically, I have an isolated coax cable that goes from my office to the ...
0
votes
2answers
3k views

VGA cable causing resolution issue

I recently bought a new VGA cable. When connected, Windows 7 detects my monitor as a generic plug and play monitor. The resolution goes bad with the screen blurred. This problem disappears when I ...
0
votes
2answers
1k views

Determining ethernet wire category/speed

I moved into a home that has Ethernet cables in the walls and all my computer's are gigabyte Ethernet ports, same as my router and the cables I use to connect my PC to the Ethernet ports in the wall, ...
44
votes
5answers
151k views

Is there a difference between “Thunderbolt” and “Mini DisplayPort” cables?

TB-to-TB cables seems to be more expensive than mDP-to-mDP cables. Is there any actual difference besides the branding? This is for use in connecting a MacBook Pro to a dock with multiple ports (USB ...
79
votes
5answers
30k views

What is the little twist in this floppy ribbon cable for?

There is a twist of a few lines in this floppy cable. Why? What is the purpose of it?
8
votes
4answers
13k views

I have both cable and DSL at home. How do I put that to good use?

There was an offer I could not resist and now I have ended up with both cable and DSL on my home network. I am using the cable network exclusively because it is a lot faster. My general idea was to ...
11
votes
3answers
41k views

What connectors do I need for Cat 7 cable?

SOLUTION: I have found RJ45 connectors that are compatible with Cat7 and can also be used with the standard cat 5/6 crimpers. These do not provide speeds higher than would be expected of Cat 6a, and ...
39
votes
4answers
13k views

What is the purpose of this 4 pin cable with 3 wires that came with an old IDE DVD-ROM drive?

Stumbled on this cable today, it has 4 pins, of which only three are actually in use. It was found with a quick installation guide of an old DVD-ROM IDE drive and nothing else except some screws, so I'...
17
votes
9answers
34k views

Static noise from speakers when computer is off

I have a rather old set of Creative speakers called Inspire 2.1 2400. The original cable that connects them to the computer was of poor quality, and at some point I had to replace it. The original ...
12
votes
2answers
43k views

How to determine a network cable's maximum speed?

I have some machines connected in my workplace network using Ethernet cables. I know some types of Ethernet cable can handle speeds up to 5 Gbps but I'm not sure which ones. So I want to determine the ...
25
votes
6answers
27k views

Is there any benefit of using HDMI over DVI?

I recently bought a Mac mini. It comes with an HDMI to DVI adapter. I bought a LG monitor that has an HDMI port. My concern is: Is there any improvement when I connect the Mac Mini to the monitor ...
25
votes
6answers
15k views

How much electricity is there in the “power switch” button cables?

Because of a broken power button on the front of my computer I've had to take the cables connected to the button and create a sort of "hotwire" setup to start my computer. This is done by simply ...
13
votes
3answers
72k views

How do I find out the speed of an Ethernet cable?

During the years I've collected many ethernet cables. I'd like to know the speed of each one (10Mbit / 10BASE-T or 100Mbit / 100BASE-TX or 1000BASE-T). How could I find out the speed of each Ethernet ...
11
votes
4answers
25k views

Crimping CAT6 cables results in lower bandwidth than expected

I'm trying to make my own CAT6 cables, because I need specific lengths. I've managed to create 2 "working" patch cables, but when I hook them up to my cable modem, both of them take a fairly long ...
9
votes
7answers
40k views

What's wrong with my custom LAN cable?

This question is basically a continuation of this previous question. Never mind, here's the deal: I've made a LAN cable that goes through a wall, but it doesn't work. The cable is roughly 10m/30ft ...
5
votes
3answers
19k views

3–RCA-to-USB Cable?

Does anyone know what these RCA-to-USB cables are/do? There doesn’t seem to be any electronics in the cable like an EasyCap, so I can only assume that the RCA connectors are directly connected to the ...
5
votes
4answers
5k views

Can viruses be spread via VGA cables?

Are VGA cables too "dumb" to spread malware from one device to another device? Background: I'm giving a talk tomorrow, and the laptop I'm presenting on will be connected via VGA cable to another ...
5
votes
4answers
47k views

How important for speed is the length of the phone cable between the wall and the modem?

I have an inconveniently-placed phone jack in my office, so I am running a 10m phone cable from the wall jack to the modem, which is on my desk. Consequently, I have a very short ethernet cable ...
31
votes
7answers
43k views

Ethernet cable too long?

I have an Ethernet cable running from a Huawei ADSL router to a computer> The total length is 61 meters (200 ft). When connected to the computer, a cycle of identifying, disconnected, identifying, ...
14
votes
2answers
2k views

Is a USB 3 Type A-to-A cable dangerous with USB 2 ports?

I recently purchased a USB 3.0 hub, and was surprised when I opened the box to find that it used an A-to-A cable for it’s main connection; see picture below. A “Type A” connector is the rectangular ...
6
votes
4answers
58k views

Cables for building a computer [closed]

I'm looking at building a computer and I have already done a whole bunch of research the topic and I think I know what I'm doing. My question is where do all the cables required for connecting ...
5
votes
2answers
34k views

How to get two separated connections on one cable?

So... We have a CAT5 cable. How can we use two separated connection on it? I know if we want to use 2 psyhically separated connections then we can get only max 100 Mbit on each line. How do I need to ...