StarTech.com Portrait/Vertical TV Wall Mount, Heavy Duty TV Wall Mount, 40-55 inch VESA TV (110lb/50kg), Tilting Low Profile Digital Signage Television Mount with Lockable Security Bar - TV/Display Wall Mount mounting kit - vertical - for flat panel - bla

This Universal Portrait TV Wall Mount is ideal for customer-facing applications like menu boards or digital signage in hotels requiring the flexibility of portrait / landscape setup. Thanks to its durable steel frame, it can support VESA compatible displays from 40" to 55" and up to 110lb / 50kg in weight. It provides a sleek and professional look thanks to its low profile (3in / 78mm from the wall at the straight angle), and its powder coated finish.
This vertical TV wall mount enables you to adjust the tilting angle by hand (0/+5/+10) using the tilt pin to adjust to the ideal viewing angle. Using the built-in ratchet/lever screw handle this wall mount lets you make micro-height adjustments by hand (range of 10mm) to precisely align your TV when used as part of a multi-display setup (video wall).
The hook-and-mount design of the vertical TV wall mount allow for an easy and fast installation by hanging the TV to the wall mount and securing it using the locking screws. The included long screwdriver has been specially design to make the installation easier.
The portrait TV wall mount provides an extra level of security with the included locking bar, this enables you to lock your TV using a padlock (not included), specially for public setups where you need to leave your equipment unattended.