[philipkglass]

They use rare earth permanent magnets and don't offer the resolution of superconducting magnet NMR, but they are much smaller and cheaper (tens of thousands of dollars, new) than superconducting units or the even older resistive electromagnet NMR units. The first one I saw was from picoSpin, which has since been acquired by Thermo Fisher Scientific. I think that there are multiple vendors now. Here's a current picoSpin unit:

https://www.thermofisher.com/order/catalog/product/912A0913

[dekhn]

An 80MHz desktop NMR in 2022 is hilarious. This owuld be great to put in a research lab or to teach students, but it's not something that could be used in a high volume, high quality pharma testing situation.

(my phd in nmr is from 20 years ago... even then it was hard to justify the expense of nmr machines in structural biology...)