... .Product Instruction:As a dedicated ARM JTAG emulator, E-LINK compatible with all current market JLINK emulator function, with IAREWARM, ADS, KEILMDK, WINARM, ... as CPU, double buffering, USB port protection circuit, ESD, auto-recovery fuse, 3.3V power supply chips, etc.* E-LINK ... speed 12 MHz.* Target voltage range of 3V ~ 5V.* Auto speed recognition.* Monitoring all JTAG signals and the target board ...