Q: Can it handle ASUS PB278Q 27 Inch 19.4 lbs?

Yes. Mounting Standards: VESA FDMI MIS-D, 100/75, C (hole pattern: 100 x 100 mm & 75 x 75 mm) * Weight Capacity: 5 to 25 lbs (2.3 to 11.3 kg). With monitors greater than 20 lbs (9.1 kg) in weight, the vertical range of motion may be reduced up to 4.5" (11 cm) for a total height range of 8.5" (22 cm)

Q: How does a computer mount to this? Does it have to be screwed in? I have a Dell monitor and not sure at this point how to attach it. Thanks.

Versa mount needs 4 screws On dell monitor you can see them already when you unclip original stand off Screws also can be in package for mount If you asking about how it mounts to table it is using clip that clips to the side of the tale

Q: Can you put multiple arms on the same pole. I would like to put 3 monitors on one pole but want to be able to adjust them independent of each other?

You -could-, however, the product is not designed for this type of usage. They have products that address your situation. This product is not made to support that much weight. You may cause damage or collapse the clasping mechanism.

Q: I have 3 ASUS ROG PG278Q set up in a horizontal fashion. Looking for a possible 4th ASUS ROG PG278Q and would like to mount it above my center monitor. Does this arm have the height (reach?) to hold a 27" monitor above another 27" monitor?

I just lifted my 32" LG ultra wide 21:9 monitor up to see if I could get enough space under and no way. I don't have the first segment all the way up the mounting post/pivot. It's more like the product shot how I set mine. But even with and extra 3" it won't work to stack two in vertical position.

Question 1

How is the mount secured to the floor or table or ?? It is not clear why it will not fall over due to the weight of the monitor or what I need to mount it to. Thanks in advance.

Accepted Answer

Terry, the pictures don't convey everything.  It comes with a very sturdy desk mount clamp or you can also screw it down to the top of you desk.  If you use the desk clamp, make sure you have a good solid surface to clamp it to.

Question 2

I have a 37 inch monitor that weighs less than 15 lbs. What keeps a larger than 27 inch monitor from working with this mount?

Accepted Answer

I believe it has to do with VESA mount standards.

This monitor supports VESA type MIS-D, which has two hole size patterns for mounting to the back of a monitor (i.e., 75 x 75 mm;
100 x 100 mm). A larger monitor might require a VESA type MIS-E or MIS-F due to the screen being larger--requiring a more solid mount.

So, mainly it has to do with the distance between the holes on a monitor that you're attempting to mount that will really determine if the back plate on this stand can effectively work with your screen. Of course, weight is the other factor, but in your case that doesn't sound like an issue.

Question 3

Would this be able to support and articulate an old U2711?

Accepted Answer

I'm not sure what a U2711 is, but my ERGOTRON (with 2 arms) is supporting 2 Apple Thunderbolt 27" Displays nicely. They each weigh around 24 lbs and as long as these ERGOTRON arms extend outward, there's a a lot of leverage working against it but it still works well. There are tension adjustments to help with the weight of large displays, and I've just cranked them down tight to help keep those big displays in place. I am very happy with the two I've purchased and they would be my first choice for the next purchase. I've tried several other display mounts and always come back to this one.

Question 4

will this fit all monitors?  I have an acer and I want to make sure it'll attach correctly and sturdily.

Accepted Answer

This will not fit all monitors. This stand supports VESA MIS-D (hole pattern: 100 x 100 mm & 75 x 75 mm). Your monitor must use this mounting standard. For best use, it should also fall within the specifications listed in the details of the product (Screen: <= 27"     Capacity: 7.00 - 20.00 lbs. / 3.10 - 9.10 kg)

Question 5

Can it handle ASUS PB278Q 27 Inch 19.4 lbs?

Accepted Answer

Yes.  
Mounting Standards: VESA FDMI MIS-D, 100/75, C (hole pattern: 100 x 100 mm & 75 x 75 mm)
* Weight Capacity: 5 to 25 lbs (2.3 to 11.3 kg). With monitors greater than 20 lbs (9.1 kg) in weight, the vertical range of motion may be reduced up to 4.5" (11 cm) for a total height range of 8.5" (22 cm)

Question 6

How does a computer mount to this?  Does it have to be screwed in?  I have a Dell monitor and not sure at this point how to attach it.  
Thanks.

Accepted Answer

Versa mount needs 4 screws On dell monitor you can see them already when you unclip original stand off

Screws also can be in package for mount

If you asking about how it mounts to table it is using clip that clips to the side of the tale

Question 7

Can you put multiple arms on the same pole. I would like to put 3 monitors on one pole but want to be able to adjust them independent of each other?

Accepted Answer

You -could-, however, the product is not designed for this type of usage. They have products that address your situation. This product is not made to support that much weight. You may cause damage or collapse the clasping mechanism.

Question 8

I have 3 ASUS ROG PG278Q set up in a horizontal fashion. Looking for a possible 4th ASUS ROG PG278Q and would like to mount it above my center monitor. Does this arm have the height (reach?) to hold a 27" monitor above another 27" monitor?

Accepted Answer

I just lifted my 32" LG ultra wide 21:9 monitor up to see if I could get enough space under and no way. I don't have the first segment all the way up the mounting post/pivot.  It's more like the product shot how I set mine.  But even with and extra 3" it won't work to stack two in vertical position.

Brand	Ergotron
Model	45-295-026
Type	Multi-Monitor Stand

Dimensions (H x W x D)	23.00" x 11.20" x 7.20"
Weight	11.00 lbs.

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ERGOTRON 45-295-026 LX Desk Mount LCD Arm with Tall Pole, Mounting Kit for LCD Display, Aluminum

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