Rev 2 XP has
168 pins. (12 x 14 pin grid array)
The AquaComputer Cuplex XT has 165 pins (13 x 13 pin grid array, minus the 4 corner pins)
Yep - When I saw 270 I was (mistakenly) thinking of the Swiftech MCW600x and its number of pins (281) and thought that applied to the German "twins".
Still - somewhat like a more pinned version of what I said (HP Pro / XT). Better break out the 50 micron micro-strainers for this one - my ~150 micron micro-irrigation strainer struggled to keep the HP Pro I have here clog-free, having to strain the water multiple times.