You’ll find that there are a lot of devices like that which are essentially, if not absolutely, identical. It’s easy to say, “That’s Chinese manufacturing for you!” but it’s more complex than that.
As simply as possible, when you spot virtually identical products, they are probably physically manufactured by one company, lets say company A. Company A is probably based in Shenzhen, China. They sell their product in a stall/kiosk in one of the incredibly, unbelievably massive electronics markets. You can walk in and just buy one or two, or you can walk in and sign a contract with them for thousands. So, for the sake of simplicity, company B went to company A and ordered a bunch of units. Company B can then package it/brand it how they like, provide what level of support, customer service, warranty, etc., that they see fit. Depending on the type of product, Company B may either work with Company A to develop custom firmware for the device, or in some cases cut Company A out of the firmware/software entirely and write and flash their own. Company C could do the same thing, but could work out a different deal with Company A on price, Company C may offer different warranty support, any other differences that just go along with it.
A good example is Wyze Cam. The Wyze Cam v1 and v2 were “just” rebranded Yi Home cameras, Yi being a Chinese manufacturer. However, Wyze completely rewrote from the ground up (according to what I read a while back, at least) the camera’s firmware. They built in a ton of cloud based functionality the Yi camera didn’t originally have, they offer quality American based customer support, etc., etc.
Anyways, the reason I say all that, you could get either of those and both could work identically, both could fail/not work as you want identically, or one will be great, good enough, or something else while the other is just crap. Physically, internally, they may be identical, but that doesn’t inherently mean they are identical. That said, in my experience… they usually are identical enough that I’d get which ever is cheaper and assume the other is basically the same.
ALL THAT SAID (it’s a boring/quiet Saturday, I’m apparently quite happy to ramble today), back to the KVM: I spent ~2 years shopping for a quality DP1.4 KVM. What I found, and this is a matter of personal preference, but any DP1.4 KVM I could order fast on Amazon or likewise was crap. Almost immediately I’d find something wrong with them. The only ones worth looking at are the ones on back order. The solution I landed on for a while was separate USB 3.0 switches and changing the monitor’s input. It sucks, but it works well enough while you wait for a back order to be fulfilled.