IgorsLAB reviewed the NZXT H1
A quote from the article:
The part has already irritated me, if only because of the size, which should have been called small. Well, the Corsair One is completely custom loop, but here I don't have the Frickelei with the watered graphics card. On a footprint of just under 19 x 19 cm and a height of just under 39 cm, the H1 from NZXT is quite compact. In addition, there is a decent mini-ITX motherboard in the form of the Asus ROG Strix X570-I Gaming and a Ryzen 5 3600X, which I have emulated for technical reasons with your Ryzen 7 3800X. There is also a longer video where you can watch me screw ingesth.NZXT H1 Review
The motherboard is an Asus ROG Strix X570-I Gaming, one of the currently only three X570 motherboards available on the market in mini-ITX format. And it was also the only thing on which I could mount the two NVMe SSDs at all, because I really wanted to do without SATA components. With regard to RDNA2 and PCIe 4.0, all the old boards are eliminated down to the A320 anyway. Thus, you have a great selection with generous two options: buy or not buy.