Lot of 4 Logitech SmartDock Extender Box Model V-U0041 - SH H3B | eBay
Logitech SmartDock Large Skype Room System - video conferencing kit - with SmartDock Extender Box, Surface Pro (i5, 128GB, 4GB), Logitech Group + Expansion Mics / Hayatspro
SMARTER THAN THE AVERAGE DOCK.
Logitech Smartdock V-U0041 Extender Box | eBay
Logitech 960-001095 Extender Box for Smart Dock - Walmart.com