SAM D20 Xplained Pro Evaluation Kit The SAM D20 Xplained Pro evaluation kit is ideal for evaluation and prototyping with the SAM D20 Cortex®-M0+ processor-based microcontrollers. Xplained Pro Extension kits compatible with the SAM D20 Xplained Pro kit can be purchased individually.<p>The ATSAMD20-XPRO evaluation kit does not include extension boards.<p>SAM D20 Xplained Pro supports many Xplained Pro extension kits, including I/O1 Xplained Pro, OLED1 Xplained Pro, and PROTO1 Xplained Pro.