This is probably the cheapest way to get 4x NVMe support, but ~9 months ago I got Minisforum UM780 XTX with two NVMe 4.0 slots and two TB 4.0 ports to use with

This is probably the cheapest way to get 4x NVMe support, but ~9 months ago I got Minisforum UM780 XTX with two NVMe 4.0 slots and two TB 4.0 ports to use with 3xNVMe drives (one with external TB case). I've added 96GB of RAM to it and want to move my old dual Xeon behemoth to it, with power consumption at the wall being double CM3588 with 3 4TB drives. Peeformance is, obviously, incomparable.