Compact and efficient Class D power amplifier with high cost performance. Achieves 3.2W output with sound quality comparable to Class AB amplifiers, while maintaining Class D efficiency. Plug-and-play design requiring only a single power supply, with automatic configuration for 35 different clocks and 128 digital o formats. Compatible with microcontrollers or development boards with I2S o output, such as Raspberry Pi, Arduino, and ESP32. Excellent electromagnetic interference (EMI) suppression enables use of long speaker cables without external filtering. Features industry-leading Class D efficiency. The MAX98357 digital input Class D power amplifier helps designers achieve compact, efficient, plug-and-play solutions. Output power: 3.2W at 4Ω (THD = 10%), 1.8W at 8Ω (THD = 10%). Supported I2S sampling rates: 8 kHz to 96 kHz. Color: Purple. Material: PCB. Package contents: 20 × MAX98357 amplifier modules. Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.