Changes

{{GD Template Impl}}

[[File:IMG-4739-配件图.jpg|thumb|right|X821 Packing List]]

[[File:IMG-4741.jpg|thumb|right|X821 Rear View]]

[[File:IMG-4757-Interface-Schematic.jpg|thumb|right|X821 Interface Schematic]]

[[File:X821-How-to-Power.jpg|thumb|right|How to Power X821]]

[[File:IMG-4749.jpg|thumb|right|X821 & Pi3]]

[[File:IMG-4752.jpg|thumb|right|X851 & Pi3 & X735]]

[[File:X820-C6-01.jpg|thumb|right|X820-C6 Front]]

[[File:X820-C6-02.jpg|thumb|right|X820-C6 Back]]