This is the last one, a spare unit. It's new and unused, and the main unit is in good condition, but the outer box and case have some dents from shipping. For sale is the CHARGE LAB Power-Z USB Tester KM003C. It is new and unused, but if you would like to have its operation confirmed, please let me know immediately after purchase. In addition to voltage, current, and power, you can also check the charger chip's protocol display. You can also easily update the firmware using PC software. Please note that chargers and USB cables are not included. Shipping will be via Yu-Packet Post Mini. I will ship within 24 hours. Thank you.