UNO-220-P4N1AE is designed for customers using Raspberry Pi 4 (RPi 4) single-board computers (SBCs) in IoT applications. Featuring a Raspbian OS equipped with an 8 GB micro SD card, a RPi 4 HAT I/O board with additional RS-232/485 connectors, GPIOs, and an RTC battery backup for precise time keeping. The UNO-220-P4N1AE industrial-grade enclosure transforms RPi 4 into an industrial gateway in an industrial environment. UNO-220-P4N1AE features pre-finished mounting holes and attachment screws enabling plug-and-play assembly with separately purchased RPi 4 SBCs. This system provides developers with a complete RPi-ready industrial-grade gateway kit ideal for rapid prototyping in harsh environments like a shop floor.