https://openwrt.org/ja/faq/plenty_16mb_flash_but_only_4mb_usable
[OpenWrt Wiki] ja:faq:plenty_16mb_flash_but_only_4mb_usable
16mb flashopenwrtwikijafaq
https://www.cnx-software.com/2022/07/13/weact-rp2040-board-adds-16mb-flash-usb-c-port-to-raspberry-pi-pico-form-factor/
WeAct RP2040 board adds 16MB flash, USB-C port to Raspberry Pi Pico form factor - CNX Software
Jul 13, 2022 - If the Raspberry Pi Pico's 2MB of QSPI flash is not quite sufficient for your needs, and you'd not quite a fan of micro USB ports, the WeAct RP2040
https://www.cnx-software.com/2022/10/31/lilygo-t7-s3-esp32-s3-board-16mb-flash-8mb-psram-lipo-battery/
LILYGO T7-S3 ESP32-S3 board with 16MB flash, 8MB PSRAM, LiPo battery support sells for under $10...
Nov 2, 2022 - LILYGO has launched another ESP32-S3 development board. The T7-S3 is equipped with an ESP32-S3-WROOM-1 module with 16MB flash, 8MB PSRAM, and a PCB