POWERFUL Mini PC With PCIe GPU Support! EliteMini B550 Review

Stackable bus structure options: · Requires one PCIe x1 link andor one USB link · Modular rugged milled aluminum frames · Maintains the PC104 bus self-

Stealth's Expansion Slot Mini PCs are versatile solutions and offer single or dual expansion slot options in a small form factor size

microgame slot List of Motherboards with 2 PCI-Express x16 Slots: ASUS TUF Gaming B760M-BTF WiFi, ASUS TUF Gaming Z790-BTF WiFi, MSI B760M Project Zero, GIGABYTE Z790

microgaming slot So you need to buy a PCIe card which has Mini PCIe slot Also you can put Mini PCIe cards to secondary nvme card slots but you need to be sure