PCIE 3.0 x1 SATA cards - Storage Devices and Controllers - Unraid
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.
How to increase the number of PCIe slots available?
PCIe provides lower and higher than parallel buses, such as PCI and PCI eXtended. Every device that's connected to a motherboard with a PCIe link has its own dedicated point-to-point connection.
Grundlagen PCI-Express - amdAREA51
The types of PCIe slots available in your PC will depend on the motherboard you buy.
Amazon.com: ASUS Prime Motherboard B660M-A WiFi D4 LGA 1700(Intel ...
EX-B560M-V5 Intel® B560 (LGA 1200) mATX motherboard features PCIe 4.0 support with SafeSlot Core+, two M.2 slots, USB 3.2 Gen 1, Realtek® 1 Gb Ethernet.