Instruct: Classify the given review as either positive or negative.
Query: DO NOT BUY IT

I bought 10 of this cables for me and some friends. I installed and verified the port and it appeared in hardware with no problems but when I try to use it, it makes nothing, I expended like 8 hours trying to make it work but I could not, I changed the com1, 2, etc, I installed the new driver from the product site, I also installed it in different computers with different windows versions and it did not work. I read comments like this and I thought it will not hapen to me. Do not buy it.I have been buying in amazon over 5 years and this is the first article that disappointment me.