STM32F103R8T6 | Microcontrolador ARM Cortex M3 32bit 20 kB RAM, 64 kB Flash, LQFP 64 pines 72MHZ USB USB | RS
Placa de desarrollo STM32F401, STM32F411, STM32F401CCU6/CDU6, STM32F411CEU6, STM32F4, 84Mhz, 64KB de RAM, 256KB, ST LINK, V2|Circuitos integrados| - AliExpress
1 uno Módulo Casio ES-100 Tarjeta Ram 64kb Compatible con vz - Etsy España
64KB RAM : r/vintage_electronics
Its got a full 64kb RAM guys! $6000 too! Real bargain! - 9GAG