1.Self-protection: GT1 Pro Multiplexer will be turned off by itself if the voltage surpasses 15.8V during your testing, and it will restart if the voltage below 15.8V autometically.
2. TwinB GT1 Pro uses the newest software DK219.
3. TwinB GT1 Pro can also supply power to the computer by the interface of the LAN cable.
Warranty: one-year product quality warrantyAfter sale service:1) Free update during one year2) Free repair and maintenance service within one year3) Free technical support by internet or via phone