The document introduces the universal socket boards from STMicroelectronics for programming ST microcontrollers. The socket boards are equipped with specific MCU package sockets and signal routing cards, and can be connected to programming tools via ICC, SWIM, or JTAG. The socket boards are available for different types of package and connector for ST 8 or 32-bit Flash microcontrollers. They are intended for small-scale microcontroller programming, such as prototypes in the development stage.