Sfera Labs Iono RP D16 Industrial Programmable I/O Modules combine the ease of use of the Raspberry Pi RP2040 microcontroller with multiple digital input and output interfaces. These modules feature an embedded RP2040 with a dual-core Arm® Cortex® M0+ processor, clocked up to 133MHz, 264KB of SRAM, and a large 16MB onboard flash memory. The Iono RP D16 modules offer a rugged, safe, and reliable design, making them suitable for installation in both industrial and residential environments. Sfera Labs Iono RP D16 Industrial Programmable I/O Modules provide a hidden USB 1.1 port with device and host support that is used to flash the microcontroller easily, and it can also be used to connect external USB devices.