Thermaltake Dr. Power II Automated Power Supply Tester Oversized LCD for All Power Supplies - AC0015

Supports all ATX power supply up to ATX12V 2.3.
Oversized LCD panel shows all voltages within 1/10th volt for quick and easy troubleshooting.
Voltage reading for all rails (+12V/5V/+3.3V/5VSB/-12V)
Built-in output connectors diagnostic system, low-voltage, high-voltage, no voltage, PG alarms.
Built-in alarm to notify user of unstable or abnormal power supply activity.
Easy to use troubleshooting system will quickly identify if power supply is the source of instability.