Difference between Acer Nitro XV272U lineup

Vasekos

Hello,

Can someone please explain to me the difference in Acer naming scheme?

I'm looking for budget 144Hz+ 1440p 27" monitor that has also a decent color reproduction for light weigh photo editing etc.

So there is XV272U KVbmiiprzx which is same as XV272U Vbmiiprzx and only difference is that KVbmiiprzx has build in USB HUB right? Everything else is the same panel included?

Like other models can be seen here: https://www.rtings.com/monitor/reviews/acer/nitro-xv272u-kvbmiiprzx

But then I find also a different review for XV272U Vbmiiprzx but now it's XV272U Vbmiiprx the z is missing in the name. But I wasn't able to find that this model exists. Is there again a slight difference? Or it's just a typo? The review: https://reviewed.usatoday.com/gaming/content/acer-nitro-xv272u-vbmiiprx-review-unexpectedly-brilliant-value

I just want to make sure that before buying the Acer Nitro XV272UVbmiiprzx I can be sure that it will perform same as mentioned in this rtings.com review: https://www.rtings.com/monitor/reviews/acer/nitro-xv272u-kvbmiiprzx

I don't believe my local resellers in Czech republic because all stores constantly mention inaccurate specifications, wrong color depth, refresh rate and Acer website itself does not mention all specs and I need to check it with reviews.

Thank you for clarification.

Vasekos

Also why Acer has 2 different names for single product?

Because what I know that Acer Nitro XV272UVbmiiprzx is supposed to be UM.HX2EE.V23

But on official Acer website it said it's only 144Hz instead of 170Hz as listed everywhere else.

Thank you.