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Will a 10/100mbps coupler affect speeds from a gigabit modem/Cat5e connection?

Last response: in Networking
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April 28, 2013 12:54:31 PM

Ok i bought a 25ft cat5e cable to run around my room from my comcast modem to desktop. According to windows i have speeds of 1gbps but to be realistic only getting 80mbps download speeds according to speed test.

I bought a newer bigger case for my desktop and the few inches higher ethernet port is a tight reach, since i already secured the cat5e cable against the wall on the floor. I work part-time for best buy and can get the only rj-45 coupler they have for like $1, but what bothers me is that the speed is rather 10/100. So if i decide to get the coupler to relieve the tension, will it affect my internet speeds?
April 28, 2013 1:00:31 PM

What is the advertised speed from your ISP? That is the defining issue for connecting to the outside world.
Internally, 10/100/1000 links will be limited to 10/100 if there is a 10/100 device in the chain.
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April 28, 2013 1:14:56 PM

Not sure. Its not the lowest plan neither the highest but I get on avg 75-85 mbps and a couple of times running speed test it went up to 90+
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April 28, 2013 1:19:53 PM

lreyes66 said:
Not sure. Its not the lowest plan neither the highest but I get on avg 75-85 mbps and a couple of times running speed test it went up to 90+


So yeah...you probably have a 100 up/xx down cable or FiOS connection.
A 10/100 device will not matter for that, but it will limit your internal connections between devices.
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April 28, 2013 1:50:59 PM

The vast majority of rj45 coupler have all 8 pins coupled between the cables. This will allow 1g. Only reason I could see they mark it as 10/100 is if they only have some of the pins carried though.

If it does not have all 8 pins I would just buy one of the many hundreds of device from some other vendor. $1 is the pretty standard price for those.

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