How to buy NT530 in the lowest price?

Foxwell NT520 pro  Multi-System Scanner with 1 Free Car Software Ship you NT530 Instead

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What is the biggest advantage of NT530 compared with NT520 pro?

1. NT530 can support latest 2018/2019 models while NT520 pro cannot.
2. NT530 can better support BMW F Chassis while NT520 pro cannot.
3. NT530 add four more car makes based on NT520 pro:  Maybach, Mitsubishi, Renault, Nissan