Found this one on e-Bay yesterday,appears to be the same one that others have purchased from other sources w/only the brand name being different:
EZOPower Sync Cradle Dock Charger w Detachable Case Plate for New HTC One M7 | eBay
& this one from e-Bay as well:
Desktop USB Sync Data Dock Charge Charging Cradle Charger for HTC One M7 New | eBay
The apparent lack of a removable adapter plate to accommodate a case made this one a no-go,went w/the 1st option listed.