This NNSS7 replaces a cheap pole-mounted monitor arm I owned before that was hard to adjust, didn't hold much weight, didn't extend very far out or up, and just didn't look or feel like a quality product. I replaced that with this Huannuo HNSS7 鈥 and this is a huge upgrade. I bought one declared "Used - very good" for about $76 CAD and as far as I can tell, it was a brand new, never-opened box.
This is *much* higher quality than my old $30 stand. It is very easy to adjust and offers way more flexibility than my old stand. I can just grab the monitor and push it up and down, or easily pull it towards me while I'm seated. You can adjust all the pivot-points with the included allen keys to change the amount of resistance the stand has for various adjustments, so you can make it loose and very easy to adjust or tight with stiff adjustments to lock it in place.
You get the furthest possible reach with the bottom of the mounting plate about 11" above the desk (where the top arm is horizontal). I find that height to be fairly comfortable for my 27" Studio Display. In that configuration I can get 27.5" of extension from the back edge of the desk (as advertised). That should be enough distance for fairly deep desks, even for side monitors that have to be tilted towards you.
There are a couple of minor nits to pick with this mount that keep it from being a five-star product, but none of them are dealbreakers. I've ordered them by the worst to most trivial issues.
鈥 The plastic sleeve around the back of the mounting plate feels like the cheapest part of the product. It almost looks like it's going to break, but I'm not concerned because this is primarily aesthetic and not easily seen.
鈥 The mounting point for this plate to the arm on both sides is plastic with a steel insert. I had to push very, very hard to get the plate inserted into the arm so I could screw the bolt in. The fit was a little too tight. A tight fit is probably important to be able to add some resistance so the monitor doesn't pivot too easily, but I was almost worried I was going to need to modify it to get it together. If you run into this problem, just keep in mind that it needs a good amount of effort to get in.
鈥 There is a plastic cover on the bottom of both parts of the arm for routing cables through, and the piece on the top requires removing a screw. This screw was difficult to turn, and it's kind of annoying that you require a tool for something as trivial as removing a plastic cover. The bottom part doesn't need this, why does the top? I'd have preferred a toolless mechanism for removing a cover plate that may have to frequently be removed to change cables.
鈥 This stand will not be very sturdy if you put the monitor all the way behind your desk 鈥 the clamp is only designed for being mounted at the back and going over the desk towards you. I temporarily swung the monitor around the desk and found that it looked quite precarious, so keep this in mind if you intend to use the stand in this way 鈥 the feet on the clamp will not support the monitor very well in such a configuration where the weight is behind it. (You could grommet-mount the stand to eliminate this issue if you're cool with drilling a hole through your desk, or already have a hole for this purpose.)
鈥 There is a plastic cover that attaches to the clamp with channels for cable routing and even little hex-holes for storing the included tools. Unfortunately, the holes are not sized correctly for some of the tools, so you can only get two of them in without drilling the holes bigger. Seems like a very silly oversight for what could have been a nice feature.
鈥 The tightening knob on the C-clamp that grips your desk is a little small, so it's challenging to torque it tightly. I have strong hands and got a good, sturdy grip but a slightly larger knob would have been appreciated for those with less grip-strength.
鈥 There's a USB-A-shaped hole in the base with an included USB-3 A extension cable. I don't intend to use this and I'd probably just rather it were not there at all so the price of the stand could go down a few dollars. You can simply not install it if you don't want it, but then there's a little hole in the side that would serve no purpose. I think this is an awkward place to plug something in, but maybe others find it handy for a charging cable or something. In 2023 a USB-C port would be more relevant.
鈥 The logos were not very well adhered. Maybe this is a plus, as I could easily peel the logos off to have an unbranded stand.
鈥 It had a few garish yellow warning stickers haphazardly stuck on the stand. Ironically, these were really hard to get off without sticky residue. I'd rather those were easily-removable adhesive, like the logo stickers were.
Despite these minor complaints, I'm very satisfied with this product and am considering buying two more for the side monitors of my triple-monitor desktop setup as they offer lots of reach and easy adjustability at an excellent price.
Side note - it's well worth getting the VESA-mount version of the Studio Display and one of these instead of paying Apple for their overpriced height-adjustable stand! You'll have way more flexibility to optimize ergonomics while freeing up all the space under your display to put your laptop, papers, or other items you want on your desk.