[MERVIN]💖[HOT SALE]🎈🎈 1 3 5pcs Two-way UART Communication Protocol Serial Port Isolation Module Dual 6N137 Optocoupler Chip Of 600-250K Baud

Brand New and High Quality!. Material: PCB. Size: As shown in the picture. Color: Green. Package Included: 1 3 5PCS. Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow 5-10mm differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may not reflect the actual color of the item. Note: Due to manual measurement, there may be errors in the dimensions and weight, Please understand, Colors may have color differences due to factors such as light, saturation, and pixels, We apologize for any inconvenience caused. Brand New and High Quality!. Material: PCB. Size: As shown in the picture. Color: Green. Package Included: 1 3 5PCS. Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow 5-10mm differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may