The ASUS PRIME B450M-A II motherboard is compatible with the ASUS Dual GeForce RTX 3050 OC graphics card.

Here are the relevant details:
- The motherboard uses the AMD B450 chipset and has a PCIe 3.0 x16 slot that supports the NVIDIA GeForce RTX 3050 OC graphics card.
- There are no specific limitations or compatibility issues between the B450 chipset and NVIDIA graphics cards of this type.