I had a monitor failure on my dual monitor computer so I bought 2 of these to match. I screwed it up thinking my computer had an HDMI output, but it didn't. I had DVI and VGA video outputs. I have a video capture card that uses an HDMI video input. Some time passed and I forgot what I had! So I had to buy an adapter cable, DVI to HDMI. It works great! I love these new monitors. I connected one to VGA and the other to HDMI (DVI), I can't say which is better. I've seen complaints, but I have no complaints. Plug and play and they are impressive! Especially for less than a hundred dollars apiece. And yes, there are definitely 4 tiny screw holes on the back for you to mount it on your arm. They had rubber stoppers. Pull out the plugs and insert the screws. I had to buy longer screws for these monitors. The plastic on the back feels a bit thicker than my previous monitors. I bought 4mm x 16mm screws with locks and flats. I made an excellent choice. If you buy it, I don't think you will regret it.
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