Though limited by motherboard bifurcation capabilities (4x4x4x4 is required for all four slots to operate), the Hyper M.2 x16 ...

Low-cost, high-speed Thunderbolt 5 hub that will add extra Thunderbolt 5 ports to your Mac at an affordable price.

MSI’s Datamag SSD blends USB4 speeds, magnetic mounting, and 4TB capacity, aiming for creators but requiring independent performance validation.