Cables to Go 37133 2-Port RJ45 Splitter/Combiner Cable, Gray 6-Inch (Single Unit*)

by Cables To Go

Product Details

• Product Dimensions: 5.2 x 3.5 x 1.1 inches ; 1.4 ounces
• Shipping Weight: 1.6 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000Q5UMEI
• Item model number: 37133
• Average Customer Review: 2.7 out of 5 stars  See all reviews (92 customer reviews)
• Date first available at Amazon.com: May 1, 2007

Product Description

This 2-port passive splitter is handy when you need another network connection but don't have the time or the money to add another cable drop. Simply plug one device into your work area network port and another unit to the corresponding patch panel port. Now you can run two network devices over the same network cable. Non-intrusive to the network; a simple plug-and-play installation. Please Note: Sold individually, this item must be used in pairs for each installation, one on each end of the cable.

Customer Reviews

Most Helpful Customer Reviews

223 of 227 people found the following review helpful:

5.0 out of 5 stars Works perfectly, May 19, 2009

By 

Bruce (Seattle, WA, USA) - See all my reviews

Amazon Verified Purchase

This review is from: Cables to Go 37133 2-Port RJ45 Splitter/Combiner Cable, Gray 6-Inch (Single Unit*) (Personal Computers)

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 people found the following review helpful:

3.0 out of 5 stars Do you know how this works?, August 8, 2008

By 

Stephen E. Jones "Steve Jones" (Mount Airy, MD) - See all my reviews
(REAL NAME)   

This review is from: Cables to Go 37133 2-Port RJ45 Splitter/Combiner Cable, Gray 6-Inch (Single Unit*) (Personal Computers)

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 people found the following review helpful:

5.0 out of 5 stars This Item is for System Administrators ONLY, May 21, 2010

By 

S. Ellis "IT-Pro" (Oakland, Ca) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Cables to Go 37133 2-Port RJ45 Splitter/Combiner Cable, Gray 6-Inch (Single Unit*) (Personal Computers)

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.