This USB cord is for Samsung cell phones that you want to connect to your computer. It works as well as expected. It's high quality despite the price--no need to pay over **** for a cord like this; & maybe not even that much. I have a Samsung smartphone from AT&T, & so I use the cord to transfer files back & forth between the phone & laptop. It does just that. You can also use it for tethering if your plan allows you to. All you do is connect, & then connect to the Internet. Overall, 5 stars because it's simple to use & inexpensive for its purpose.