LILLIPUT Um-1012/c/t 10.1" USB Touchscreen LCD Monitor W/2 Built-in Speakers Mini USB Port by Viviteq

I bought this monitor in December 2012. However, I started to use it from this month (April 2013). Initially, driver software was missing and I contacted the seller and she helped me to located the driver and fix the problems. Now it is working fine.The product is good. However, I am giving it four stars due to following two reasons:1. Even though, the advertisement says I would only need USB connections, I had to use external power supply unit (provided in the box) to make it working. This may be a limitation for portable usages.2. I got wrong model. I ordered for a stand-mounted model (as shown in the picture in the Amazon to use in my car). Instead, I received an inclined support version, which I will not be able to use as planned. I did not request for replacement, as I live in Bangladesh and I bought it through my friend in US, where replacement request could be problematic.Overall, I will say it is a good monitor and works fine. However, please note the power supply issue, if portability is important.