SMD module. ESP32-S2FN4R2 with 4 MB flash die and 3 MB PSRAM die inside. PCB antenna, (XXN4R2 = 4MB Flash/2 MB PSRAM/85°C)ESP32-S2-MINI-1-N4R2SKU: ESP32-S2-MINI-1-N4R2€2.50PriceQuantity*Add to CartComponent TypeMCU ModuleStock Quantity9750Manufacturer