Question Two Simple Ethernet / RJ45 Questions

[Caveman]

1) 20 ft long CAT 6 or CAT 7 cable running from router needs to be 6 ft longer via extension. Typical connection is ~960MB/s. How much speed will the extension cost? My assumption is 1-2 MB/s = negligible, yes?

2) Has anyone ever tried one of those RJ45 to USB (female) to add another USB port to a laptop? Does it work?

 

[VirtualLarry]

USB and ethernet don't work like that.

Ethernet is to be deployed according to "the standards". It either works, or it doesn't. It's not like techs that probe the line and adjust the bandwidth dynamically. It's not like you'll just "shave a few mbit/sec" off of the connection, with an extension. Most likely, you'll just geta spotty connection, with a bunch of bad packets, which have to be re-transmitted. You'll get rubberbanding during online MMO gaming, since they use UDP.

I've never seen a ethernet RJ45 to female USB adaptor, unless you're talking about a print server. Why not use a small USB hub instead, on an existing USB port?

 

[igor_kavinski]

I've never seen a ethernet RJ45 to female USB adaptor

Well now you can: https://www.amazon.ae/Female-Adapter-Socket-Network-Ethernet/dp/B07PKFPLN1

I was surprised to see that too, but less thrilled that it's only for special use case of connecting routers via USB to RJ45 port. Bummer. My first thought was, oh cool! It's got a USB to ethernet emulation bridge chip. Share any USB device over the network seamlessly. Nope 🙁

 

[igor_kavinski]

1) 20 ft long CAT 6 or CAT 7 cable running from router needs to be 6 ft longer via extension.

Thanks. Your post led me to this: https://www.amazon.ae/dp/B0875NB89J/

I didn't know CAT 8 cables could look sexy!

 

[igor_kavinski]

How much speed will the extension cost? My assumption is 1-2 MB/s = negligible, yes?

https://www.amazon.ae/UGREEN-Coupler-Ethernet-Extender-Adapter/dp/B016B13U9Y/

That should minimize any signal attenuation issues. You should get full speed with it.

 

[Tech Junky]

20ft isn't that big of a deal. I have a ton of shorter cables and didn't feel like ordering yet another so I went with these couplers instead.

https://www.amazon.com/gp/product/B08L59F94L

Now, if you're dealing with extreme runs then a proper cable would be advised.

 

[igor_kavinski]

Even cheaper: https://www.amazon.com/UGREEN-Coupler-Ethernet-Extender-Connector/dp/B016B13U9Y/

 

[ch33zw1z]

1) just buy a longer cable

2) sure, they work, just get one that is a known brand.

 

[Tech Junky]

 

[igor_kavinski]

View attachment 72954

Dirt cheap!

Makes me want to think up of designing some networking contraption for kicks 😀

 

[Tech Junky]

Cheap and work well. Doesn't need to be expensive or complicated. Since most of us have a drawer full of short cables on hand sometimes it's makes more sense than adding yet another cable to the pile. Basically a wall jack without the wall.

 

[ch33zw1z]

Yea, I have a few for in a pinch situations, but long term I’m gonna get a complete cable end to end

 

[iamgenius]

Even cheaper: https://www.amazon.com/UGREEN-Coupler-Ethernet-Extender-Connector/dp/B016B13U9Y/

I just bought few 2 days ago. They are good. I have a cat6 roll. Sometimes I make my own cables with custom lengths, or just buy a pre-made one with appropriate length. Depends on the actuall need and my mood at the time.

I haven't done ethernet to USB but I have done the opposite and the opposite works. Like the guys said though, it should work but why not USB hub?