Yes, the back of the Pen Display 24 is designed to accept a 100 x 100 VESA mount. Ergotron, for example, is a top-selling manufacturer of extension arms.
https://www.ergotron.com/en-us/
Whichever manufacturer you choose, you will want to ensure that the arm fits your desk or will attach to your wall securely. You do not want to take any chances with your Pen Display 24. attaches
The weight of the pen Display 24 is 16 pounds / 7.25 kg.
The screws you removed from the Pen Display 24 stand are to long to be used to attach the VESA 100x100 extension plate to the back of the Pen Display.
You will need to use M4 4mm to 5mm Flat or Bubble head Phillips head screws.
The image to the right shows an M4 5mm Phillips head screw. |  |
The image to the right shows a properly seated M4 5mm Philipps screw fashioned to an extension arm 100x100 VESA plate on a Pen Display 24. |  |
The image to the right shows an improperly mounted VESA plate to the Pen Display 24. Notice the gap between the Pen Display and the VESA mounting plate. This can lead to the screw failing and damage to the Pen Display. |  |
Do not over tighten the screw. You will want to tighten the screw so that it is tightly seated. When you feel resistance, stop. Over fighting the screw can case damage to the screw hole on the Pen Display 24 it twist off the screw head as pictured on the right. |  |
If you want to contact Customer Care with additional questions, or need their assistance you can email them at CustomerCare@Xencelabs.com.
