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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2 answers
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How to DIY split SATA to two USB 2 ports?

Any portable device (such as USB or SATA etc.) must be available to do two things: Must feed its circuit with Power, either from the source port (eg. USB) or from any external power source (eg....
26 votes
2 answers
38k views

USB Type C Power Delivery Profile - max length?

The new USB-C connector allows for 100W to be delivered to charge laptops etc. Is there a maximum length for a charging only cable? The specification talks about cables being less than two meters ...
0 votes
2 answers
4k views

Connecting LAN cable to wall socket

I have a few computers I want to connect to internet. All PCs are connected to a network switch. My task is to connect the switch to the internet router. The cable that came from the internet router ...
1 vote
1 answer
2k views

What is this TRRS jack which appears longer than the standard jack?

I recently purchased an USB thermometer. The USB device has a 3.5mm connector to receive the corresponding cable which has a 3.5mm jack on one end, and an actual temperature sensor on the other end. ...
1 vote
2 answers
6k views

Touchpad response badly when connecting monitor

When I connect my laptop to a monitor through the HDMI connection, I have a hard time controlling the mouse using the touchpad. I'll try to explain as best as I can: The touchpad works perfectly ...
0 votes
2 answers
3k views

Cat 7 cable - only 100mbit instead of 1gbit

I just tried to get my new 20m Cat 7 cable to run, but I am only able to reach 100mbit. I have already bought an expensive connector testing/DIY kit a few years ago. When I check the cable I can ...
0 votes
2 answers
8k views

Cannot connect Samsung Galaxy Y Duos to laptop via USB cable

While I am connecting my phone to my laptop neither the laptop nor the phone can detect each other. By not recognizing I want to mean nothing happens after connecting. It seems that I have not ...
0 votes
1 answer
4k views

PC will only turn on if I position the PSU ATX power cable in a certain way

The past 3 days I've been trying to fix this issue. I just bought a new motherboard and CPU, but I've ran into a problem. My computer will not turn on unless I'm pulling/pushing/positioning the PSU ...
17 votes
3 answers
108k 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 ...
2 votes
2 answers
4k views

DIY Cat6 cables only giving 100Mbps instead of 1Gbps

I've made my own ethernet runs in the past and they've always worked great. I needed to make some more so I got some cable, some RJ45 connectors and a crimper. No matter what I do I can't get the ...
-2 votes
2 answers
150 views

How to disable the shield in shielded Cat8 ethernet cable?

I recently installed shielded Cat 8 ethernet cable in my house during unrelated renovations due to water damage that required opening up the walls. The electrician also installed shielded RJ45 Cat 8 ...
0 votes
0 answers
78 views

PC keeps rebooting before displaying the login screen and then works fine

It is a homemade PC that is already a few years old (without problems). These are the parts used: Mainboard: ASRock B450 Steel Legend CPU: AMD Ryzen 5 3600 RAM: 16GB Corsair Vengeance RGB PRO Power: ...
3 votes
2 answers
15k views

How to use Samsung TV as a remote display over lan cable connection

I have a desktop PC with no WiFi and a Samsung TV [ES6710] that can stream media using DLNA, however I want to use it as a remote display over LAN to mirror my PC's desktop on the TV (I have ethernet ...
0 votes
0 answers
181 views

If my GPU has 1x HDMI 2.1 port and my monitor (Full HD 100 Hz) has HDMI 1.4, what kind of HDMI cable should I get?

Asking because I genuinely am not sure and I don't want to waste money. If my GPU has 1x HDMI 2.1 port and my monitor (Full HD 100 Hz) has HDMI 1.4, what kind of HDMI cable should I get?
6 votes
6 answers
3k views

How do I know if my RJ45 socket is compatible with CAT5e cables?

I have three, around 16-year-old RJ45 wall sockets in my house, and they were not used in more than a decade (I used Wi-Fi instead). I checked the cables in the wall and they are Cat 5 type, which ...
10 votes
2 answers
35k views

Is there any way I can test the capabilities of a USB-C cable, perhaps with an external device?

I have a USB-C cable that has absolutely no markings on it. I don't know where it came from, so I don't know what kind of cable it is. I think it's a Thunderbolt 3 cable, but I'm not sure. It doesn't ...
7 votes
4 answers
63k 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. Where do all the cables required for connecting everything come from? ...
1 vote
2 answers
498 views

Need help identifying some cable connectors and their use case [closed]

First up I can't identify the connector on the left. The middle one is USB mini B and the right is USB micro B I don't think it's any USB or HDMI connector The other end is a regular USB Type A ...
0 votes
1 answer
53 views

Connect external LCD monitor with only 2 Display Ports to Laptop with only HDMI output

I have an LCD monitor with 2 DP inputs only and a laptop having 1 HDMI output. I know it can't directly connect via single cable or HDMI-to-DP converter but via an active adapter. I also have type-C ...
0 votes
0 answers
151 views

How can I get full speed internet/Ethernet access to all rooms of my apartment

I have a 4 bedroom apartment and every person in those 4 bedrooms has multiple devices they want to hardwire such as desktops, Xbox, PlayStation, and laptops. Each person has 2-3 devices they want ...
0 votes
0 answers
38 views

Is my cable or iGPU at fault here?

I have a 1440p 240Hz monitor and I would like to fully utility the refresh rate at the monitor native resolution. I have a Ryzen 2500U CPU with Vega 8 iGPU integrated. I have a bit older cable ...
1 vote
1 answer
144 views

EVGA GT1300 doesn't power 4TB Dell SAS drives from its SATA connectors, but does when connected to Molex; Why?

I've been having problems with enrolling some SAS hard drives (on a ZFS ZOL system of mine). I had an EVGA 600w power supply. I thought maybe it was that or cables. I replaced the cables, still had ...
0 votes
3 answers
43 views

USB to USBC only for one device?

Can products be made such that only the cable they provide will charge it? I have a baby sound machine, which has a USB to USBC cable that the company provides. It's too short and I've tried other ...
0 votes
1 answer
2k views

USB device fails because of extension cable but only on one PC

Recently I bought an eID reader (Vasco/OneSpan Digipass 905). I've since tested the device on several computers (all identical Windows 10 machines), and it works fine on each of them. Because of the ...
1 vote
1 answer
193 views

After opening a laptop, how do you plug short ribbon cables back in?

I have a laptop which now requires an external keyboard. When I opened it (to clean the fan, it was overheating), the keyboard ribbon cable slid out of its socket and I cannot plug it back in. It is ...
1 vote
2 answers
2k views

Is there a M.2 NVME extension cable? (+ considerations on using them)

I am looking for an NVME extension cable, because there is hardware position conflict, and I would like to avoid using hacky solutions such as taping my NVME SSD on a surface I'm not too sure would be ...
10 votes
3 answers
5k views

Is this color scheme another standard for RJ45 cable?

I'm trying to add a RJ45 connector to a Ethernet cable for a NVR system (Surveillance Cameras). The cameras comes with ethernet cables and I see that the only have 4 cables used and in different ...
1 vote
2 answers
454 views

What to do when led #3 & #5 don't lite up in cable tester

I have clamped my 1st network cable. It's a "Vega network cable FTP CAT6 4PR 23AWG TIA/EIA-568B ISO/IEC 11801 2017" cable. It's in my house (inside the walls) between 2 floors, installed (...
26 votes
8 answers
49k views

cat6 cable only getting 100mbps over larger distance

I know this question has already been asked a few times but I feel that my case is a little different since I've tried all the solutions provided in the other threads. I created a small diagram to ...
9 votes
2 answers
2k views

A twisted-pair copper cable terminated according to the TIA/EIA-568A standard on one end and TIA/EIA-568B standard on the opposite end forms a:

I was going through some A+ practice exams when I came across this question: In modern Ethernet networks, A twisted-pair copper cable terminated according to the TIA/EIA-568A standard on one end and ...
5 votes
1 answer
935 views

Damage marks on PC power cable/socket

The problem: Yesterday i started to experience stable shut downs when playing Far Cry 5, which lead me to checking everything power related and thus discovering some sort of damage marks on both the ...
0 votes
1 answer
125 views

What type of connectors do I need for wifi aerial to router connection? Not Ethernet [closed]

I have a ZTE Home Broadband router that has 2 very small sockets for an external aerial and I would like to know what they are called so that I can get the proper cable with the right size plugs. I ...
0 votes
0 answers
40 views

Is there any requirement for a USB cable to be qualified enough for single-lane 10Gbps singaling?

Assuming a host (including its ports and whatsoever) and a device both supports USB 3.1 Gen 2 / USB 3.2 Gen 2x1 (i.e. USB 3.2 Gen 1x2 is not considered), does a user need a "good enough" (e....
1 vote
1 answer
271 views

Can I connect a POTS cable over a CAT6a cable?

I currently have a UK Master socket which splits into 2 circuits 4 wire for phone extensions and AB line for RJ11 ADSL2 modems. I can run POTS extensions from the socket, but I need to extend the AB ...
3 votes
3 answers
17k views

What is the max USB cable type-A male to type-c male Volt/current/Wattage possible?

I am struggling to understand USB type-C specifications in terms of power supply, It took me a lot to figure out about USB data bandwidth but now that type-C is used to charge mobiles I need to learn ...
15 votes
6 answers
106k views

How much power output can an 8-pin to 2x 6+2-pin connector output?

A common cable included in modern modular PSU's is the 8-pin to 2x 6+2 pin. However, based on reading (such as PCI-e Power - Does 6 + 2 Equal 8?) an 8-pin is effectively the same as a 6+2 pin. If that'...
1 vote
1 answer
844 views

What is the effect of using lower Cat# cables in a higher Cat# keystone jacks, when the versions are NOT backwards-compatable?

It is not recommended to use ethernet patch cable in a lower-grade keystone jack (wall outlet), unless there is known backward-compatibility, such as between Cat6 and Cat5e. Is it acceptable to use ...
79 votes
8 answers
153k views

The locking clip/tab on my Ethernet cable's plug is broken. How can I fix it?

I have a 10 meter long Ethernet cable. One plug has the little locking clip missing, just like missing the part in red ellipse in the following picture. How can I fix it? Is this something I should ...
0 votes
2 answers
152 views

Can a non-detachable USB-C charging cable from a laptop charger be extended?

I have an Acer Swift 3 laptop that charges from a 65W USB-C wall charger it came with. The cable is ~4ft long, but I need it to be a foot longer to comfortably reach the laptop on my desk. ...
0 votes
0 answers
2k views

Are there different kinds of SATA power connectors, and if so, what terminology do I need to distinguish them?

I have two power cables that I'm trying to use to hook up multiple hard drives in an Unraid system. Both look superficially like this: ...with a 6-pin connector like this that goes into the power ...
1 vote
1 answer
70 views

Identify the cable connector

Please identify this cable connector by model/part number/supplier. It is a cable between a control box and microprocessor. One photo for scale shows the connector next to an RJ45.
1 vote
3 answers
221 views

100mbps with some cables/connections, 1000mbps with others

I encounter that I can reach 1000mbps with some combinations of RJ45 outlets and cables, and only 100mbps with other combinations. I can reach 1000mbps with all cables (when combined with a given ...
6 votes
4 answers
62k views

What is the difference between USB Mini A and Mini B?

I have a bunch of USB A to Mini B cables and a single USB A to Mini A cable. I have lost track of where they come from. The two types both look exactly the same with the USB A side having a white ...
1 vote
1 answer
69 views

Wi-Fi point my shed - I don't know what to buy

I have just had fibre installed; I have a Wi-Fi repeater extending the Wi-Fi but my shed is too far away to benefit. I used to have a cable running from my 4G box to my shed and this worked fine, but ...
0 votes
1 answer
3k views

Is connecting 3-pin audio jack to 4-pin slot safe?

I have bought a new headset that has a 3-pin audio jack port. The cable that came with it has 3-pin audio jack 3.5 (I think its also called AUX?) on both sides. Would it be safe to plug it into 4-pin ...
0 votes
1 answer
1k views

Do I need a special cable for this SSD?

I just bought a SanDisk 2 Tb SSD. It's amazing that I can carry so much data in such a tiny package for just $120. The device has a USB-C port, but SanDisk assumes that my computer has the older USB-A ...
0 votes
0 answers
100 views

CAT6A home wiring - 100mbps over series-connected runs - gigabit over standalone runs

Was hoping to avoid one posting another "100mbps over CAT6A" posts but here we are! Apologies for the length. I'm currently running ethernet cables in a 1900s house (UK) as the walls and ...
1 vote
1 answer
212 views

How to find one end of cat-5e cable hidden in a wall

I have a junction box in my house where seven cat 5E cables originate. The ends of the cables inside the junction box are all attached to a patch panel. I can only find four wall plates in the house ...
0 votes
1 answer
608 views

Do I really have a telephone-only cord connected to my RJ-45 jack?

I recently purchased an end table that comes two electrical outlets and an RJ-45 jack. The RJ-45 jack came wired with a cable I am having trouble identifying. The markings say E170689 AWM STYLE ...
0 votes
2 answers
8k views

Long USB cable device not recognised

Hello i have a cable which have 4 cables inside. I attached a female USB port o the one side and the other is connected to my PC. The problem is that the cable is more than 5 meters and my PC does not ...

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