20Pin standard JTAG interface, supporting for JTAG or for SWD isolation High-performance digital isolation is adopted, and the isolation voltage is up to 5000Vrms, with integrated overload, short circuit and overheat protection Measured to 12M, no speed limit Support debuggers on the market Built-in isolated power supply, available in 3.3v output version and 5V version JTAG/SWD isolator is a tool used to protect the debugger and computer. When debugging or burning the single chip computer on the circuit board with high voltage, carelessness lead to high voltage backflow to the computer, and even the data of the hard disk be lost. This isolator can completely isolate the debugger and the target board electrically, providing for debugging the high-voltage board. Note:Due to different product batches, the appearance may be different, which does not affect use. Colour:As Shown Material:PC+Metal Package Contents: 1 * isolator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.