PCIe 3.0 VS 2.0: What are the differences and similarities? - EaseUS
Can I plug a PCI 3.0 videocard into a PCI 2.0-built computer? - Quora
ASUS Launches WS C246 PRO: 4 PCIe 3.0 x16, Two M.2, Optional SAS RAID
Can You Use a PCIe Express 3.0 Card In a 2.0 Slot? - ElectronicsHub
PCIe Gen 4 vs. Gen 3 Slots, Speeds
Can You Use a PCIe 3.0 Card in a PCIe 2.0 Slot? - GPU Republic
ASUS ROG Strix B450-F Gaming II AMD AM4 (Ryzen 5000, 3rd Gen Ryzen ATX Gaming Motherboard (8+4 Power Stages, HDMI 2.0b/DP,2 x PCIe 3.0 x16, USB 3.2 Gen 2 Type-C, BIOS Flashback,