Dual Arm Monitor Stand, Full Motion Adjustable Gas Spring Monitor Mount Riser with C Clamp/Grommet Base for Two 17 to 32 inch LCD Computer Screens, Each Arm Holds up to 17.6lbs, Bonus HDMI Cable $54.89 w/promo code, B66G7DPD Sorry, link won't copy here. Search HUANUO at Amazon.com. It's the one priced $72.99, second choice for one $89.99 on that page. Discount applies to the larger one. Good Luck.
Does anyone here already bought it and experienced it all the way or not ? I do recommend you to do some research before, there is probably a reason why people wouldn't buy it at all. I like the price and have found it for so long, but I would wait a bit.
In olden days, such brackets were rather useful because monitor tends to be rather small (< 20"?). Nowadays you can get 42" monitor at decent price and good display quality. so instead of getting tens of small screen monitors, better to get few big monitors