yes but did anyone open it? i would not be surprised that they just made the exact same thing that interrupts one wire only.

a simple slide switch would do, something like this. if needed one can put pair of 4PDT side by side and 3D print bo/lever that moves both. or even use 8 reed contacts activated by magnet.

 

View attachment 371852

https://www.amazon.com/SinLoon-Ethernet-Extension-Internet-Network/dp/B0CR451WGF/

I'd never seen an Ethernet cable with a switch, and while the $11 is twice what an Ethernet switch could be had for, this would be nice, compact, convenient, and not need power sent to it.

However... I looked up the SinLoon products on Amazon and the reviews are atrocious. I didn't see that specific cable, but there were several others and a third of the reviews are 1-star. Most of those either didn't work out of box or stopped working after a few months. A couple also specifically noted that the switch only switches one wire in the cable and that Gigabit ports will continue to function by negotiating a lower speed that used fewer lanes.

Still, there's no reason to think that some reputable manufacturer doesn't have a legitimate product out there.

 

One trick could be to cut the cable and install the nine-pin male conectors that mate with one of those OLDER DATA CABLE switches. I still have a couple because the boxes are handy for quite a few small projects, including switches.That will alow breaking all eight lines at once.

 

if needed one can put pair of 4PDT side by side and 3D print bo/lever that moves both. or even use 8 reed contacts activated by magnet.

An Ethernet connection is 1, 2, or 4 twisted pairs. Each pair is fully isolated and balanced, basically connecting two transformer secondaries. Thus, worst case you only need 4 switches max., each pole is for one wire in each pair. One 4PST or 4PDT switch will do it.

If you want to cheap out, use a DPST or DPDT switch to break wires in only the orange and green pairs. These are the two used in 100 Mb and 1 Gb.

ak

 

This French model is effective and it comes with extra cables.

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Wouldn't soldering the Ethernet cable wires on poles of switch somehow affect the impedance and the stability of the connection in the Gigahertz range?

 

MY FAR GREATER CONCERN is about a nearby lightning strike delivering a damaging voltage spike to my computer. Nearby spikes have twice damaged electrical items in my house, so for me , at least, THAT HAZARD IS REAL!!! I think it may already have been mentioned.

So the SAFE solution is still unplugging, BUT to avoid wear on your computer connection, use a short cable and a coupler like shown in post #19. THAT will give you a much better disconnect on all 8 conductors.
AND, by the time the connector wears enough to matter, your computer will be several years obsolete.

 

Wouldn't soldering the Ethernet cable wires on poles of switch somehow affect the impedance and the stability of the connection in the Gigahertz range?

GB/s cables don't not have GHz signals on them
Yes switch / solder would be bad impedance , but it's at end of line so far end distribution, look at how a "punch down" rj45. Is compared to a GHz sma connector .

 

Wouldn't soldering the Ethernet cable wires on poles of switch somehow affect the impedance and the stability of the connection in the Gigahertz range?

Yes, but ...

IIRC the standard allows for a max cable length of 100 meters between nodes (computers, switches, routers, etc.) For "normal" connections of 1 to 3 meters, the delay time for a reflection is so short that it rarely is a problem.

ak

 

It is not likely that you have "gigabit speeds" present on that 8 conductor/4 pair ethernet cable.
It is also not likely that more than two pais are used for your internet connection. AND CERTAINLY breaking the right pair is all it would take.

MY FAR GREATER CONCERN is about a nearby lightning strike delivering a damaging voltage spike to my computer. Nearby spikes have twice damaged electrical items in my house, so for me , at least, THATHAZARD IS REAL!!!

So the SAFE solution is still unplugging, BUT to avoid wear on your computer connection, use a short cable and a coupler like shown in post #19. THAT will give you a much better disconnect on all 8 conductors.
AND, by the time the connector wears enough to matter, your computer will be several years obsolete.