The be quiet Pure Power 12 M (850 W) power supply unit, with the manufacturer number BN344, offers a wide range of connections for comprehensive compatibility:

- Mainboard connectors: 1x 20/24-pin ATX, 1x 8-pin EPS12V, 1x 4/8-pin ATX12V.
- PCI-Express connectors: 4x 8-pin PCI-Express connectors, compatible with PCIe 5.0 GPUs and GPUs with PCIe 6+2 connectors.
- S-ATA connectors: 6x S-ATA connectors.
- Drive connectors: 2x 5.25 inch drive connectors.
- Other connections: 1x 12VHPWR connection.

Regarding compatibility with the ASUS ROG Strix B650-A Gaming Wifi motherboard:

The power supply is compatible with the ATX12V 3.0 standard, which makes it compatible with most modern motherboards, including the ASUS ROG Strix B650-A Gaming Wifi. The connectors provided cover the requirements of the motherboard, in particular the 20/24-pin ATX and 8-pin EPS12V connectors required to power the processor and motherboard.