Compatibility |
 |
 |
 |
 |
|---|---|---|---|---|
| 45-214-026 | 45-228-026 | 33-344-200 | 24-414-227 | |
| 27-inch Thunderbolt or LED Cinema Displays |
requires Apple Adapter |
requires Apple Adapter |
requires Apple Adapter |
Compatible! no adapter needed |
| 27-inch iMac late 2012 to present |
— | requires iMac Mount Adapter |
— | Compatible! no adapter needed |
| 21.5-inch iMac late 2012 to present |
requires iMac Mount Adapter |
requires iMac Mount Adapter |
— | Compatible! no adapter needed |
| 27-inch iMac late 2009 to 2012 |
requires Apple Adapter |
requires Apple Adapter |
requires Apple Adapter |
— |
| 21.5-inch iMac late 2009 to 2012 |
requires iMac Mount Adapter |
requires iMac Mount Adapter |
— | Compatible! no adapter needed |
Attaching Apple Displays to VESA Mounts
Most Apple displays are not VESA compliant. To attach a non-VESA-compliant Apple display to a VESA mount, you may need an adapter bracket. Reference the guide above when connecting a non-VESA-compliant Apple display to an Ergotron sit-stand workstation, monitor arm or wall mount.
Apple now offers iMac computers with built-in VESA interface. An iMac from late-2012 to present cannot be retrofitted to include a VESA interface—the built-in VESA interface is only available at the time of purchase. If a VESA adapter is not available, choose a mount with a proprietary Apple interface—see above.