![motherboard - How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec) - Super User motherboard - How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec) - Super User](https://i.stack.imgur.com/5syKp.png)
motherboard - How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec) - Super User
![motherboard - How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec) - Super User motherboard - How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec) - Super User](https://i.stack.imgur.com/4YAus.png)
motherboard - How to tell if an empty PCI Express slot is 1.0, 2.0 etc? (general test, or enquiry command, not refer to spec) - Super User
![B550 motherboard guide: ASUS and AMD bring PCI Express 4.0 to everyone with ROG Strix, TUF Gaming, and Prime - Edge Up B550 motherboard guide: ASUS and AMD bring PCI Express 4.0 to everyone with ROG Strix, TUF Gaming, and Prime - Edge Up](https://edgeup.asus.com/wp-content/uploads/2020/08/b550-edgeup-feature-696x464.jpg)