1、no external power supply is needed, charge via USB; 2、Can monitor all JTAG signals, automatically adapt to target board voltage; 3、Include USB cable and 20-pins flat cable; 4、With RDI Flash DLL can be achieved in RDI under FLASH programming, programming; 5、With GDB Server, can be achieved in the GDB debugging environment. Features: * USB 2.0 interface; * Support ARM7 / 9/11 (including thumb mode), Cortex-M0 / M1 / M3 / M4 kernel * Support Serial Wire Debug (SWD); * Support Serial Wire Viewer (SWV); * Download speed up to 720kb / s; * DCC mode up to 800 kb / s; * Integration with IAR Workbench, Keill, ADs, RVDS; * no external power supply is needed, charge via USB; * JTAG maximum speed of 12MHZ; * Automatic kernel recognition; * Automatic speed recognition; * Supports adaptive watches; * Can monitor all JTAG signals, automatically adapt to target board voltage; * Multi-core debugging support; * Plug and play; * Include 20-PINS standard JTAG connector; * Support 1.2V-5V target board voltage; * External power supply 5V 300mA (through the command to control whether output); * External power supply to provide 3.3V 300mA (via J3 jumper); * Include USB cable and 20-pins flat cable; * Random distribution of J-Mem software that supports the observation and modification of memory; * Support for embedded cache trace Buffer (ETB) * Optional online programming, FLASH programming software: J-Flash; * Plugin makes asuitable for any RDI RDI compatible debugger like ADS, Relview, IAR, etc .; * With RDI Flash DLL can be achieved in RDI under FLASH programming, programming; * With GDB Server, can be achieved in the GDB debugging environment. Supported Operating Systems: for Microsoft Windows 2000 for Microsoft Windows XP for Microsoft Windows XP x64 for Microsoft Windows 2003 for Microsoft Windows 2003 x64 for Microsoft Windows Vista for Microsoft Windows Vista x64 for Windows 7 for Windows 7 x64 for Windows 8 Support kernel list (Based on ARM_V450i version of the driver): ARM7TDMI (Rev 1) ARM7TDMI (Rev 3) ARM7TDMI-S (Rev 4) ARM720T ARM920T ARM922T ARM926EJ-S ARM946E-S ARM966E-S ARM1136JF-S ARM1136J-S ARM1156T2-S ARM1156T2F-S ARM1176JZ-S ARM1176JZF ARM1176JZF-S Cortex-M0 Cortex-M1 Cortex-M3 Cortex-M4 Specification: Electromagnetic compatibility (EMC) EN 55022, EN 55024 Operating temperature: +5°C ... +60°C Storage temperature: -20°C ... +65 °C Relative humidity (non-condensing): Max. 90% rH Mechanical   Size (without cables): 100mm * 53mm * 27mm/ 3.9 * 2.1 * 1.1in Weight: Approx. 142g Package list:  1 * V8 Debugger  1 * USB 2.0 Fully-shielded Cable with Magnet Ring  1 * 2.54mm Flat Cable