The product is really an awesome one. It is an awesome piece of module which helps you program and serially interface the uart of any bootloaded or programmed uC. I dont know how, but it is even working on my windows 8 OS exactly fine. Everybody should try to buy this product till the stock lasts. It is even more economical and cheaper than an FTDI board which has the same functionality but is double its(PL2303) price.