XSPC are making steps in the right direction with their V3 rads having multiple inlets and outlets. But dat monsta tho...
rads dont need more than an inlet and an outlet. crossflow and multiport rads have never been big sellers. popularity speaks volumes. its nice to have additional ports but the majority of builds dont have a need for it.
the monsta rads are a great idea, obviously more fluid being in the rad for longer should in theory yield great results, but every review or comparison I have read has shown only a marginally lower delta T from the Monsta with it being outperformed by older rads like the V2 RX at lower fan speeds. 800RPM and above and it is decent but realistically, you dont watercool a computer to run your fans above 800RPM.
then there is the space issue. Modern watercooling is evolving and we are seeing adoption of watercooling in compact cases becoming standard. whilst there will always be a majority contingent within watercooling who go for the bigger chassis, the main consideration for any watercooler is 'will it fit'.
A reasonable ideology behind this is that performance of the RXV3 and Monsta is nigh on identical. the RX is 46mm thich and the Monsta 80mm thick.
This is almost double the size. For not double the performance or even a significant gain enough to consider doubling the space required for a rad in any case.
whilst the Monsta isnt a bad product and its target market is the people who must have the biggest, most imposing gear in their systems.
I find it difficult personally to justify when something half the size performs pretty much the same.