High count NVMe HBA cards?

-29% SAMSUNG 980 PRO 1TB NVME GEN4 INTERNAL SSD MZ-V8P1T0BW · 15,772 · 11,266 ; -28% Kingston NV2 500GB PCIe NVMe Gen4 SSD SNV2S500G · 4,999 · 3,599 ; -13%

Storage Capacity, 512GB ; Storage Type, PCIe NVMe SSD ; Extra Slot, Yes ; Storage Upgrade, Additional SSDs can be added ; Storage Support, 2x slots

2x m2 ssd slot nvme pcie gen4 -29% SAMSUNG 980 PRO 1TB NVME GEN4 INTERNAL SSD MZ-V8P1T0BW · 15,772 · 11,266 ; -28% Kingston NV2 500GB PCIe NVMe Gen4 SSD SNV2S500G · 4,999 · 3,599 ; -13%

2xbet slot 2 X16 GEN 4 CARD , which allows you to extend with four extra NVMe's The issue however, is that it only runs four of them, when