{"title":"Adafruit ESP32-S3 Feather with 4MB Flash 2MB PSRAM","handle":"adafruit-esp32-s3-feather-with-4mb-flash-2mb-psram","url":"/products/adafruit-esp32-s3-feather-with-4mb-flash-2mb-psram","description":"The Adafruit ESP32-S3 Feather with 4 MB Flash and 2 MB PSRAM brings the dual-core ESP32-S3 to the Feather ecosystem with Wi-Fi, Bluetooth LE, and native USB. The 2 MB PSRAM provides extra memory for large data buffers, making it well-suited for CircuitPython or projects that need fast SRAM access alongside roomier PSRAM storage.\n\nNative USB means it can act as a keyboard, mouse, MIDI device, or disk drive without an external USB-to-serial converter. It includes USB-C, LiPo battery charging and monitoring, a STEMMA QT port with switchable power, and a NeoPixel — all in the standard Feather form factor.\n\nKey Features\n\n\nESP32-S3 Dual-Core 240 MHz Tensilica – Wi-Fi and Bluetooth LE (no Bluetooth Classic)\n\nNative USB – HID, MIDI, mass storage, and CDC serial without an external chip\n\n4 MB Flash + 2 MB PSRAM – Extra memory for large buffers and CircuitPython\n\n512 KB SRAM – Fast on-chip memory for performance-critical operations\n\nUSB-C – Power, charging, and native USB communication\n\nLiPo Battery Support – JST connector with charging and battery fuel gauge monitoring\n\nSTEMMA QT / Qwiic – I2C port with independently switchable power\n\nNeoPixel – Addressable RGB LED with controllable power pin\n\nLow Power – ~100 µA deep sleep current\n\nFCC/CE Certified Module – Compact module with PCB antenna\n\nFeather Form Factor – Compatible with FeatherWings\n\n\nAlso Available\n\n\nESP32-S3 Feather (8 MB flash, no PSRAM)\nESP32-S3 Feather 8 MB with w.FL Antenna\n\nESP32 Feather V2 (classic ESP32, Bluetooth Classic + LE)\n\nESP32-C6 Feather (Wi-Fi 6, Zigbee/Thread)\n\n\nIdeal For\n\nCircuitPython projects requiring PSRAM for large buffers\nWi-Fi and BLE IoT devices with native USB\nUSB HID and MIDI projects\nArduino, CircuitPython, and ESP-IDF development\n\n\nPackage Contents\n\n1× Adafruit ESP32-S3 Feather with 4 MB Flash + 2 MB PSRAM\n\n\n\nNote: The ESP32-S3 supports Bluetooth LE only, not Bluetooth Classic. For Classic Bluetooth, use the ESP32 Feather V2. LiPo battery and USB cable sold separately.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2154,"title":"Default Title","sku":"AF-5477","price":36.25,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":1,"option1":"Default Title"}]}