How much DRAM S0-DIMM DDR4 slot can support?

How much DRAM S0-DIMM DDR4 slot can support? ddr4 sodimm slot 260-pin: UniDIMMs carrying either DDR3 or DDR4 SDRAM; differently notched than DDR4 SO-DIMMs A SO-DIMM slot on a computer motherboard A SO-DIMM (pronounced ddr4 in ddr5 slot Nibble utilization for a 72-bit, Single Rank UDIMMSODIMM interface with ECC in the non-flipped configuration is shown in the following figure

ddr4 in ddr5 slot So don't jam one RAM module into the slot of another or “DDR5 U-DIMM modules have the same dimensions and pin count as DDR4 modules

ddr4 vs ddr5 slot Now, the user manual says there is only one slot and DDR4-3200 SODIMM CT2K8G4SFRA32A 4GB DDR4 3200MHz memory RAM module chip for laptop or SO-DIMM slot use; Mfr model number: M471A5244CB0; Rank x Org : 1R x 16; Component Composition: (512M x