Abstract: A wave soldering carrier includes a base plate and a fixing member positioned on the base plate. The base plate defines a receiving recess and a number of through holes communicating with the receiving recess. The receiving recess receives a circuit board. The through holes are arranged and shaped corresponding to a number of electronic components on the circuit board. The fixing member includes a shaft including a fixing shaft fixed to the base plate and a restricting shaft extending from an end of the fixing shaft. A diameter of the restricting shaft is greater than that of the fixing shaft, thereby forming a step. The fixing member further includes a rotatable member rotatably connected to the fixing shaft and sandwiched between the shoulder and the base plate. The rotation member is rotatable to a preset position, where a distal end of the rotatable member firmly contacts the circuit board.

Abstract: A testing card includes a power interface, a plurality of serial ports connected to a plurality of test instruments. The microprocessor includes a processing unit having been burnt with a plurality of test programs, the processing unit is configured to execute one of the test programs according a user selection and generate a test command, and a serial ports management unit configured to convert the test command into a control signal, and send the control signal to a corresponding test instrument via the corresponding one of the serial port to control the test instrument to test a target device. An electronic device using the test card is also provided.