Upgrade ESP32 board without psRAM with 4MB/8MB SPIRAM
Hands-On: The RISC-V ESP32-C3 Will Be Your New ESP8266 | Hackaday
PSRAM on WROOM : r/esp32
Amazon.com: JacobsParts (3-Pack) ESP32 ESP-WROOM-32 ESP-32S Development Board 2.4GHz WiFi & Bluetooth : Electronics
Amazon.com: ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA Compatible with Arduino IDE (1 PCS) : Electronics
ESP32-S3-WROOM-1 N16 N16R2 N16R8 ESP32-S3 WiFi Bluetooth compatible BLE 5.0 16MB Flash
Amazon.com: DIYmall ESP32 DEVKIT ESP32-WROOM-32 Development Board ESP32 ESP-32S 2.4GHz WiFi+BT BLE Dual-core Dev Module CP2102 for Arduino DOIT : Electronics
Question about ESP32-DevKitC V4, WROVER vs. WROOM - Electrical Engineering Stack Exchange
New! ESP32-WROVER ESP-32 ESP-32S 4MB RAM Module Core CPU with Low Power Consumption - AliExpress
Getting Started With ESP32-CAM: A Beginner's Guide