Could this fit&handle two 34" ultrawide monitors, like acer predator x34? size: 14.75" x 32.48" x 3.91" w/o stand, 9,9kg weight.

The answer is Yes. As 34" monitor is wider but not taller than 27" monitors. I am using one of these mounts as a holder of a single 34" monitor above two Apple 27" monitors-- 19" high plus extra 2" stand. It works fairly well with 0.5" space left after tilting the 34" monitor downward to be able to see and use it.

I have the stand-v002, can i take the dual monitor arms from that pole and replace the top monitor bracket on this mount?

Yes, the STAND-V002 arms can be used on this stand's pole in place of one of the single mounts.Thank you!

How does your ergonomics/neck feel with the top monitor? I want to have a 24" 1080p 144Hz for my main monitor and a 34" UW on top for media.

To be completely honest, I regret buying this. I have to lean my head back very far to look at this. The vesa connectors are short so unless you have an extender, you will be straining your neck to look up often.

Has the pole diameter changed from 2016 to now? Will the monitor clamps from back then work with this new pole?

I bought one of these stands in September of 2018. I have no idea when it was manufactured, but the outside diameter of the pole is 1 3/8". Hope this helps.

ASIN	B00DGTP57A
Brand	VIVO
Brand Name	VIVO
Colour	Black
Compatible Devices	Monitor
Country of Origin	USA
Customer Reviews	4.5 out of 5 stars 2,422 Reviews
Enclosure Material	Aluminum Alloy Steel Plastic
Global Trade Identification Number	00617401139385
Item Weight Unit of Measure	3.86 kg
Manufacturer	vivo
Material	Aluminum Alloy Steel Plastic
Maximum Tilt Angle	15 Degrees
Maximum-Supported Screen Size	27 Inches
Minimum-Supported Screen Size	13 Inches
Mounting Type	Tabletop Mount
Movement Type	Tilt
UPC	617401139385

VIVO Dual LCD Monitor Desk Mount Stand Heavy Duty Stacked, Holds Vertical 2 Screens up to 27" (STAND-V002T)

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