Ram Mount 75mm & 100mm Vesa Flat Panel Monitor Mount. Ram-101U-D-246. 8" Arm

The Ram Mount model RAM-101U-D-246 is a double socket 8" arm mount with one round 2.5" base with AMPS hole pattern and one square monitor base with 75mm and 100mm VESA hole patterns. It's 10.35" tall at maximum extension and is collapsible. Made of cast aluminum in the USA.

The Flat Display Mounting Interface (FDMI), also known as VESA Mounting Interface Standard (MIS) or colloquially as VESA mount, is a family of standards defined by the Video Electronics Standards Association for mounting flat panel monitors, TVs, and other displays to stands or wall mounts. It is implemented on most modern flat-panel monitors and TVs.

The first standard in this family was introduced in 1997 and was originally called Flat Panel Monitor Physical Mounting Interface (FPMPMI)