| Product Type | MAINBOARD |
| Brand | Asus |
| Model | PRIME B840M-A-CSM |
| Chipset | AMD B840 |
| Series | Ryzen 3 , Ryzen 5 , Ryzen 7 , Ryzen 9 |
| USB 3.2 | 2 x USB 10Gbps (2 x Type-A) 1 x USB 5Gbps (1 x USB Type-C) Port |
| D-Sub (VGA) | – Port |
| DVI | – Port |
| HDMI | 1 Port |
| DisplayPort | 2 Port |
| Audio | 3 Port |
| PS/2 | No |
| Additional | 1 x BIOS FlashBack button |
| LAN | 1 Port |
| Model | PRIME B840M-A-CSM |
|---|---|
| Series | Ryzen 3, Ryzen 5, Ryzen 7, Ryzen 9 |
| USB 3.2 | 2 x USB 10Gbps (2 x Type-A) 1 x USB 5Gbps (1 x USB Type-C) Port |
| D-Sub (VGA) | – Port |
| DVI | – Port |
| HDMI | 1 Port |
| DisplayPort | 2 Port |
| Audio | 3 Port |
| PS/2 | No |
| Additional | 1 x BIOS FlashBack button |
| LAN | 1 Port |
