The tool should support USB 2.0 high-speed connectivity and be compliant with ISO9141, CAN, and J1850 protocols. For professional use, look for devices that have passed CE and FCC certifications to ensure electromagnetic compatibility. It is crucial that the hardware supports a voltage range of 8V to 18V to handle vehicle battery fluctuations during diagnostics. Additionally, check if the supplier provides drivers compatible with Windows 7, 10, and 11 (64-bit) to ensure seamless integration with modern workshop laptops.