Support direction connection for SigRok and OpenODC 24 I/O channels with input protection circuit Adjustable target voltage for level conversion: 1.2V - 3.3V USB interface, used to connect to a computer for control Dimensions: 57.2 x 152.5 x 16mm/2.3 x 6 x 0.6 inch Supported target interface: JTAG/IEEE 1149.1, for ARM SWD, UART/asynchronous serial On-Chip Debugging (OCD, On-Chip Debugging) interface can provide chip-level control of the target device, and is the main way for engineers, researchers, and hackers to extract program firmware code or data, modify memory content, or change device operations. If you are familiar with hardware circuits or embedded systems, then you must know that JTAG (Joint Test Action Group) and UART (Universal Asynchronous Receiver/Transmitter) can be said to be the most used serial communication interfaces. Colour:As Shown Material:ABS Package Contents: 1 * Open Source Hardware Debugger 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.