Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Can This product turn a sigle line into a double line?
Document: This is what I was trying to do:  use it as a junction box where I have one input line from my cable router, and two output lines, one feeding a laptop and the other feeding a media player. I would need to completely shut one down or turn off in order for the other to be recognized. Even then, I would need to plug/unplug the wire for the unit to work.It may not be the product fault but going by its description, a switch, it should easily handle my situation.
This product helped me to run multiple computers in-line at my workplace. This solved my connectivity issues and made it possible for me to get my work done more efficiently.
Let me make this clear if this product is anything other than 5 stars you either don't know what a switch is suppose to do or your switch is defective. I don't even write that many reviews and I was looking at my switch today and was saying man I gotta write a review. Lastly I would like to say that I'm someone who only buys top of the line products so I had doubts.
We simply unplugged the ethernet cable (wall line) from our youth pastor's computer and plugged it into one of the open ports on the switch. Now, with the switch hot (active), we simply plugged two additional ether cables (not included) into two of the open ports and connected the other ends to both the PC and the Macbook. We've had the device for several weeks and haven't had any problems!! It literally took less than a minute to set up. This is an awesome product!
I picked up this inexpensive switch to give my home office a couple more wired internet ports, thinking there would be (5) ports left to use after hooking it up to the router. My mistake. There are (5) ports, but you have to use (1) to connect a Cat5 cable line between a port on your router and this switch. (I  thought there was going to be a port on the back or side of the product to connect - leaving 5 usable ports.On the switch is a power jack for the included AC adapter (found on the side of the switch) and the 5 ports.
This desktop switch works very well when multiple network outlets are needed. The switch is small and easy to attach to a surface with double side tape. I had no problems with speed from each port. I would recommend this item. The price is great and it works!Item was used to provide multiple internet ports behind a home entertainment system.
Simple device, simple setup.Cheap, and just works.Also looks quite nice. I have installed it using double-sided tape on the bottom of my desk, and it holds very nicely. This is probably the only way to keep it fixed, as the device has no holes for screws or anything like that.Just plugged the cable from my modem into one of the ports, and the rest of the PC's to the others.
I use these all the time in my line of work and they are small don't take up much space and they work great! I will be buying more for sure.
shakey at first, just put the main line in port 1. Instructions didnt say to do so. After i figured that out it works perfectly and my games didnt drop anymore
Received on time. Worked as expected. It is a plug and play kind of device. I even connected this to power line network cable. It works a like a charm
Answer: I bought one, a couple months back-i ran the line from  my modem to the upstairs, then branched off 3 lines to different pcs.  You need an electrical outlet to plug it into (110 v AC), but it handles all three PCs at full speed.  If I needed to do it again, I'd buy this same unit