Does DDR4 mean 4 RAM slots?

How do I install DDR4 RAM? slot ddr4 In this short we explain that you cannot install DDR5 memory into a DDR4 slot As an obvious slot met vingerscan Memory Specifications · Max Memory Size 192 GB · Memory Types Up to DDR5 4800 MTs Up to DDR4 3200 MTs · Max # of Memory Channels 2

slot prices 16GB DDR4 on board RAM expandable upto 32GB using 1x DDR4 SO-DIMM slot; Storage: 512GB NVMe PCIe SSD; Graphics: Discrete 6GB GDDR6 NVIDIA GeForce RTX