Mine is a Nutriculture X-Stream 40 - which I bought on eBay UK (and had shipped to NL) just before the main Brexit rules kicked in. I believe these are frequently used for cloning weed plants...so you might end up dealing with such shops to get one. Mine cost about €110 - I see them starting at €115 now in NL.
Here's an album of when I received it in December 2020 and subsequent use in early May 2021.
I take cuttings throughout the whole late spring -> late summer period and put them in there. Originally I was just putting 1 cutting per cell into the foam holders. I've since decided more is better, so I'll have 4-8 cuttings per cell x40 cells. The water spray unit is left running continuously 24x7.
I check every weekend or so for progress
, lifting the cell holder up to see if anything is happening. This bumper crop contained many trivial-to-root species: ficus, lonicera and plectranthus ernestii. If there are clearly dead cuttings - I throw them out and replace with whatever I can find in my garden.
End of October is the end of their operational season and I empty it for winter storage.