Have you ever wondered what is inside a USB C cable and why the cost so much for a bit of wire?

[Gromett]

Cross section of a 10 Gbps USB-C USB 3.x cable, potted in resin for photography. This cable has 8 shielded "micro coax" cables for its high speed signals, each of which is only 1 mm across. Outtake from a photo shoot with
@TubeTimeUS

There are also red/black insulated power delivery wires and a shielded green/white pair. The green/white pair (along with power) is essentially an embedded USB 2.0 cable which gives backwards compatibility.

BIC pen tip for scale.

 

[Gromett]

PS: You can clearly see the difference between the cheap ones and the expensive ones?

 

[chrisgreen]

I bought one last week i don't call £1.49 expensive it works does the job I bought it for

Fast Charger Samsung Galaxy S8 S9 S10+ S20 Plus Type C USB-C Data Charging Cable | eBay

Find many great new & used options and get the best deals for Fast Charger Samsung Galaxy S8 S9 S10+ S20 Plus Type C USB-C Data Charging Cable at the best online prices at eBay! Free delivery for many products.

www.ebay.co.uk

 

[Gromett]

I bought one last week i don't call £1.49 expensive it works does the job I bought it for

Fast Charger Samsung Galaxy S8 S9 S10+ S20 Plus Type C USB-C Data Charging Cable | eBay

Find many great new & used options and get the best deals for Fast Charger Samsung Galaxy S8 S9 S10+ S20 Plus Type C USB-C Data Charging Cable at the best online prices at eBay! Free delivery for many products.

www.ebay.co.uk

Probably not a 10Gbps cable and probably of the cheapest construction. It is probably only a 480Mbps cable and not USB-IF certified.

Good quality 10Gbps cables that won't fall apart and are certified are around £15.00

 

[jezport]

Cheap USB leads interfere with the DAB signal in my van. I thought the radio had an issue, unplugged my phone, and the signal came back on. A good cable solved the issue.

^{_{Subscribers  do not see these advertisements}}

 

[chrisgreen]

Cheap USB leads interfere with the DAB signal in my van. I thought the radio had an issue, unplugged my phone, and the signal came back on. A good cable solved the issue.

funny that's what I bought the cable for the car and I have planet rock on dab all the time and never get interference. And the £13.50 I saved over getting a more expensive one buys me an awful lot of leccy for my EV

 

[Gromett]

funny that's what I bought the cable for the car and I have planet rock on dab all the time and never get interference. And the £13.50 I saved over getting a more expensive one buys me an awful lot of leccy for my EV

For use in the car? Just for charging? If so then the signal paths are not being used and you won't get interference from a cheap one and the 480Bpbs is not an issue.

 

[Mr mrs tupcox]

Given up with cheap they just don't last..

 

[chrisgreen]

For use in the car? Just for charging? If so then the signal paths are not being used and you won't get interference from a cheap one and the 480Bpbs is not an issue.

Not just for charging I run android auto with it. as I said does the job

 

[Richard n Ann]

It's usually the cheap buck converters that cause interference. Although a good shielded cable will probably help

^{_{Subscribers  do not see these advertisements}}

 

[kevenh]

Tenuous link, but when I used to test & fault find broadcast video hardware we had 14 layer printed circuit boards than used to impress me - especially when some needed modifying to re-route signals. That needed a drill to cut down to buried tracks, but I digress.
What really impressed me more than those multi-level circuit boards was multi wire circuit boards.
Manufacturers used those where they had to get in analogue video signals on a circuit board with regular components without resorting to mini coax iirc.
Those multi wire circuit boards were several times more expensive than multilayer circuit boards.