[SOLVED] Can I connect a PCIe 3.0 M.2 ssd into a PCIe 4.0 slot

Jul 3, 2021
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The motherboard, I'm planning on buying, has two M.2 slots. One PCIe 4.0 and one 3.0. It has only one heatsink tho, above the 4.0 slot. I would like to put that heat sink in use, therefore I'm wondering if I can connect my PCIe 3.0 M.2 NVMe ssd into the slot with the heatsink.
The motherboard is an " ASRock B560M Pro4 Micro ATX LGA1200 Motherboard" and the ssd is an " Kingston A2000 500 GB M.2-2280 NVME Solid State Drive"