IAR J-Link is a small ARM JTAG hardware debug probe; it connects via USB to the PC host running Windows.
J-Link integrates seamlessly into IAR Embedded Workbench for ARM and is fully plug-and-play compatible:

• Supports all ARM7 and ARM9 architectures
• Download speed up to 50 KB/sec
• No power supply required, powered through USB
• JTAG speed 8 MHz
• Auto speed recognition
• All JTAG signals can be monitored, target voltage can be measured
• 20-pin standard JTAG connector
• USB and 20-pin flat cable included
• Supported platforms: Windows 2000 and Windows XP

Download IAR Embedded Workbench Supported ARM boards (32K Code size restricted version, requires registration with IAR)