The advertised product is not what I was sent. The monitors are advertised at 24" but as I found out recently by checking the product # they are 23" and the 2 USB ports on each monitor don't work. I was way passed the warrenty when I discovered these problems so I have no recourse available.  I contacted the company and was told there was nothing they were willing to do, not even a gift card. Check what you bought to be sure it is as advertised