http://tinyurl.com/psf6gjy
Geeetech J-Link/JLink V8 USB ARM JTAG Emulator Debugger-J-Link V8 Emulator
USB2.0 Port,plug-and-play
Support ARM7/9/11 (including thumb mode), Cortex-A5/A8/A9, Cortex-M0/M1/M3/M4, Cortex-R4
Support Serial Wire Debug (SWD) and Serial Wire Viewer (SWV).
Up to720kb/s Download speed (800 kb/s in DCC mode).
Maximum speed of JTAG is 12 MHZ.