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Most Helpful Customer Reviews
223 of 227 found the following review helpful:
 Works perfectly May 19, 2009
By Bruce
I'm thinking the people rating this poorly don't understand how to use it. It WON'T split a single Ethernet CONNECTION into two. It WILL enable a single Ethernet CABLE (which has 8 wires) to carry two connections (which require 4 wires each). This is helpful in places where you have a single cable running from your router (typically in a wiring closet) to two devices, and can't easily run a second cable -- i.e., where one cable is already installed in the walls.
Here's how you use it: Run Ethernet cables from 2 ports of your router into the female jacks of the first splitter. Plug the male end of that splitter into the jack in your wiring closet that runs to the part of your house you want. Plug the male end of the second splitter into the Ethernet jack at the other end of that cable run (i.e., in the room where the devices are located). Run Ethernet cables from the female jacks of the second splitter to the devices.
If you want to use a single Ethernet connection for two devices, these splitters won't work; you need a router that shares the connection among the devices.
104 of 124 found the following review helpful:
 Do you know how this works? Aug 08, 2008
By Stephen E. Jones
"Steve Jones"
I dont own this item, but I'm thinking of buying some, then I saw the bad reviews..
From reading the reviews, it seems, at least from the first one, that the person didn't know how to use the item.. This is NOT a 3 port switch. You can NOT plug the male plug into a switch and have it run two PCs... It is splitting the 4 pairs (8 wires) into TWO separate two-pair outlets.
Ethernet only uses pins 1, 2, 3, and 6, leaving 4, 5, 7, and 8 unused. This device connects pins 1, 2, 3, and 6 on the male to 1, 2, 3, and 6 on one of the femals jacks, and pins 4, 5,7, and 8 of the male go to pins 1, 2, 3, and 6 of the OTHER female, giving you two separate paths of pins 1, 2, 3 and 6.
The idea is that if you need two PCs where you only have one jack in the wall, you plug one of these into the jack, and another one into the patch panel, and it allows you to hook two PCs to two separate switch ports. You will STILL need 2 separate switch ports to connect your two PCs, and you will ALWAYS need these splitters in pairs because you'll need to have one on each end of your 4-pair house cable.
Now.. Does this make sense? And, given this description, are any of the negative reviews still valid? I dont want to buy a piece of junk, but as this is not even an active device, but rather just like a wiring adapter, I can't imagine that it could fail, short of it being a physically poorly constructed device...
16 of 16 found the following review helpful:
This Item is for System Administrators ONLY May 21, 2010
By S. Ellis
"IT-Pro"
This item is for System Administrators/I.T. Professionals ONLY. If you don't know what this item is for, it is not for you.
This item is NOT a HUB or SWITCH. It allows a standard ethernet with 4 pairs (eight wires) to be split into 2 sets of 2 pair (4 wires + 4 wires) so that you can have ethernet devices through 1 ethernet cable.
To use this item, you need 2 splitting the wire on both ends of the cable.
I am using this very successfully with a computer @ 100Mbits full and a VOIP/IP Phone @ 100Mbits full with POE on 2 different networks.
8 of 8 found the following review helpful:
Perfect! Jul 23, 2010
By P. Smith
I used two of these to split a cable run into two separate connections. worked great. you need two of these, one on each end of the run, to complete this setup. Think of it as a two lane onramp into a tunnel, with an identical two lane offramp at the other end of the tunnel. the traffic on the two lanes never mixes, not even in the "tunnel".
8 of 8 found the following review helpful:
Very good product, if you know how to use it Oct 05, 2009
By Mark Twain
"wwwumax"
This is a passive device. This is not a switch. This requires a switch to work with. This need to use in pairs. This splitter assume in Ethernet and Fast Ethernet case only 4 out of 8 wires are used. Assume you have one Cat 6 routed in the wall, and you want to hook up 2 devices from the outlet. One way is to link up a switch and split actively at local desk. Another way is to link two devices to this product and plug in your wall outlet. At the other side where the single line goes to switch or router, you need to add another such splitter reversely and the two outputs connect to "two" switch ports. That way, you are sharing one line of two devices with one less router.
The down side is the additional length from computer/device to switch, which in fact regenerate the signal. I doubt this splitter will have less driving distance.
Another down side is that it can't support Giga-bit Ethernet where 8 lines are used.
So, if you want to go green and save the always on switch, use it! I hate wireless, hence I wired my whole house with many switches. I've bought 4 of such splitter to save 2 more switches.
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