EDUP 320W Starlink PoE Injector for Starlink Performance Gen 2 / High Performance, Starlink Dish Cable Adapter to RJ45, DC Step UP Converter 12V to 48V 6A 288W (Gray)

That does look exactly like the Starvmount one that I have, at least externally. So that particular EDUP model is probably worth rolling the dice on. It's cheaper, no shipping fees or tariff, and you can easily return it to Amazon if it doesn't work. When I bought my EDUP kit years ago, it was this older multi-part model. That's the one I went through three of before giving up. I felt so burned by EDUP that I wouldn't have considered the one you linked, but seeing it now, I'd give it a try since it looks identical to my now-working Starvmount one. Just avoid the shitty multi-part one I linked.