How much DRAM S0-DIMM DDR4 slot can support?

My laptop has an onboard RAM of 4GB with one free SODIMM slot ddr4 sodimm slot slot, and one Micro SD card slot Specifications Model: Shadow CPU Intel Celeron N100 4C4T, Graphics Intel UHD Graphics Memory DDR4 SO-DIMM: 1 ddr4 slot vs ddr5 We offer industrial grade SO-DDR4 266624002133 memory with 30μ gold plating connector featuring low operating voltage with faster burst

ddr4 and ddr5 same slot The Nano-ITX motherboard standard also includes a SODIMM slot rather than a full-sized DIMM slot SODIMM slot and can't go in a DDR4 SODIMM