Question : Device needed - ethernet cable y-adapter

Greetings.  I am looking for a product recommendation.  It should be simple.

I have a dual-boot Win/Linux box.  When in the Win environment the NIC output is to a Hawking wireless transmitter.  Also in Win, I use the usb interface on my dual-connect dsl modem for my Windows Internet connection (since the NIC is being used elsewhere - connected to the transmitter) .  When in the Linux OS, the NIC connects to the same dsl modem I use for Win, but I use the ethernet connection on the modem (I don't use the wireless when in Linux).  All works as it should in both systems.

The annoyance is that I don't like manually switching the network cables between the wireless transmitter when in Win and the modem when in Linux.  I don't want to mess with a hub or switch (yet more cables and another thing to plug in, even if it would work).  The two uses for the NIC never interact at the same time, so there is no need to keep the network traffic differentiated.  What I want is just an ethernet-cable version of those little plastic y-adapters you use to hook two phone devices into one line:  a single female RJ-45 connection on the one side to connect to the cable coming from the NIC, and two female RJ-45 ports on the other side to connect to the leads coming from the wireless and the dsl modem.

This is the device I have in mind, but I welcome any other options people have found that work.  As I said, I don't want to deal with anything I need to plug in (although I would use small plug-in device if that's the only option), and I don't want to deal with configuring a second NIC.  Links to products would be helpful.  Thanks.

Answer : Device needed - ethernet cable y-adapter

Theoretically, no.

Considering both wont be live at the same time, you shouldnt have a problem at all.

-red