The Pololu Breakout Board for microSD Card facilitates the integration of microSD cards into electronic projects by breaking out the card's pins to a 0.1-inch spacing. This configuration is compatible with standard perfboards and solderless breadboards, allowing for straightforward interfacing with SPI-capable microcontrollers. The board is compact, measuring 0.8 by 0.7 inches, and includes breakaway male header strips for easy connection. It supports SPI bus mode, with labeled pins for efficient communication. Duplicate power pins and additional signal lines are available for SD bus mode applications.