APM32F407VET6 — Geehy ARM Cortex-M4F MCU, 168MHz, 512KB flash, 192KB SRAM, LQFP100 Category: MCU Pricing LCSC $3.05 Mouser $4.10 DigiKey $4.15 Farnell $4.55 Manufacturer: https://www.geehy.com