Brand N/A Model RS232-TTL Quantity 1 Color Green + black Material PBC Features Chip can be replaced if burned; With power indicator receiving indicator and transmitting indicator; Small board need external 5V power can be connected through Dupont cable or USB cable Specification RS232-TTL Application Serial port communication of universal devices Router or ADSL hardware upgrade GPS serial communication hardware upgrade SCM communication RC to TX of MCU TX to RX of MCU GND super terminal serial adjustment tool and various satellite receiver upgrade etc. English Manual/Spec Test software Packing List 1 x Board 4 x Dupond cable (20cm) 1 x USB cable (64cm)