Quantity   Component name
1 × Teensy 3.x CORE module - cpu
1 × AK4558EN CORE module - codec
1 × LP5907 CORE module - LDO
4 × 22uF Nichicon audio capacitors CORE module - audio DC blocking capacitors
2 × 1x14 female pin header, straight, 2.54mm pitch CORE module - Teensy socket
1 × 2x5 female pin header, right angle, 1.27mm pitch (Harwin M50-32005) CORE module - connector for POWER modules
2 × 2x4 female pin header, right angle, 1.27mm pitch (Harwin M50-32004) CORE module - connectors for digital i/o modules
1 × 2x9 female pin header, right angle, 1.27mm pitch (Harwin M50-32009) CORE module - connector for digital i/o modules
2 × 2x3 female pin header, right angle, 1.27mm pitch (Harwin M50-32009) CORE module - connectors for line in / line out modules