Product Quantity Subtotal CH341A 24 25 Series EEPROM Flash BIOS USB Programmer with Software & Driver $1.30 CH341A 24 25 Series EEPROM Flash BIOS USB Programmer with Software & Driver quantity × $1.30 CH341A 24 25 Series EEPROM Flash BIOS USB Programmer with Software & Driver quantity $1.30 STM32F411CEU6 Minimum System Board Microcomputer STM32 ARM Core Board $3.90 STM32F411CEU6 Minimum System Board Microcomputer STM32 ARM Core Board quantity × $3.90 STM32F411CEU6 Minimum System Board Microcomputer STM32 ARM Core Board quantity $3.90 TPA3110 Mono Channel Digital Amplifier Board 30W Power Amplifier Module $0.75 TPA3110 Mono Channel Digital Amplifier Board 30W Power Amplifier Module quantity × $0.75 TPA3110 Mono Channel Digital Amplifier Board 30W Power Amplifier Module quantity $0.75 Serial Port Mini RS232 to TTL Converter Adaptor Module Board MAX3232-2pcs. $0.15 Serial Port Mini RS232 to TTL Converter Adaptor Module Board MAX3232-2pcs. quantity × $0.15 Serial Port Mini RS232 to TTL Converter Adaptor Module Board MAX3232-2pcs. quantity $0.15 Coupon: Apply coupon Update cart Cart totals Subtotal $6.10 Total $6.10 — OR — Proceed to checkout