What's inside the $40 Nexus 7 dock? Apparently not much!
Qi Wireless Charging Dock for Google Nexus 7 2013
Amazon.com: Asus Nexus 7 2012 Docking Station : Electronics
Official Asus Google Nexus 7 2012 Audio Charging Dock
ASUS Dock For Nexus 7 1st Generation (Black) 90-XB3XOKDS00030
Genuine accessory "Nexus 7 dedicated docking station" thoroughly review that can beat down "Nexus 7" comfortably on desk and bedside - GIGAZINE
ASUS Charging Dock with HDMI Output for Google Nexus 7 2013
Nexus 7 Docking Station Review - Normal Consumer
Kidigi Charge & Sync Dock for Google Nexus 7 (2012)
Amazon.com: First2savvv blue hard Steel stand desktop dock docking station for ASUS VivoTab 8 MeMO Pad HD 8 MeMO Pad FHD 10 Pad Nexus 7 Transformer TF103CX 10.1 Inch Tablet : Electronics