pcie x16 slots: Sonnet M.2 4x4 Silent PCIe 3.0 x16 Card for NVMe FUS-SSD-4X4-E3S. Dell Precision Tower 7920 Workstation. PCIE 3.0 x1 SATA cards - Storage Devices and Controllers - Unraid.
PCIe 4.0/3.0 x16 interface, compatible with PCIe x8 and x16
slots, support data transfer rates up to 256 Gbps.
Expansion Slots: (2) PCIe x16, (2) x16
slots with 2nd CPU; (1) PCIe x8 open ended, (1) x16 wired as x 4, (1) x16 wired as x1 KeyBoard & Mouse: Black Dell ...
Asus TUF GAMING B660M-PLUS WIFI D4 FCLGA1200 ATX Motherboard : 1 x DDR4
Slot, 2 x PCIe 3.0 x16 Slots, 2 x
PCIe x1 Slots, 2 x PCIe x4 Slots, 1 x
PCIe x16 Slot, 4 x SATA III Slots 7.1-Channel Audio.