This 18.1" monitor arm is a part of the AWM mounting system by Atdec. The arm is typically used in set & forget multi-display configurations or when the extra long focal distance adjustment is required. VESA head can be replaced with the SNTB laptop tray accessory (sold separately), or upgraded with a heavy duty tilting head which supports large and curved screen monitors.
With optional components, this monitor arm can be desk or wall mounted.