Your motherboard manual will confirm dual-channel support.

Yes, the manual lists it. But you don’t even need to read the whole thing — jump to the memory layout section. It will show which slots to use for dual-channel (usually A2 and B2, or the two same-colored slots).

If you lost the manual, look at the motherboard itself. The DIMM slots are almost always color-coded: two gray, two black (or whatever the manufacturer uses). Populate the same color first. That’s dual-channel.

You can also verify in software. CPU-Z (Memory tab) will tell you if it’s running in Dual or Single channel. But honestly, if you put two sticks in the correct slots, it just works. The manual is just confirming what the board already does by design.