For people who may not be familiar with the term "VESA compliant", VESA stands for "Video Electronics Standards Association". The common definition when referring to LCD and Flat Panel monitors is: "VESA standard" means a hole pattern on the back of the monitor; 75 mm x 75 mm or 100 mm x 100 mm (approx. 3 "x 3" and 4 "x 4" respectively). The diameter of the screws used to mount displays with VESA mounting is 4 mm. The mount holes on the back of LCD monitors may be centered or located towards the bottom stand. With certain displays you may have to remove the stand or a cover plate before you can access the mount holes. If you are interested in more in-depth information about VESA standards, the VESA.org website also provides summaries of the organization's display mounting standards.
As confirmed by Apple's Support Site: "No VESA Mount Adapter Kit" for the iMac Intel "Core Duo" and iMac G5 "iSight", making these iMac models VESA non-compliant. And, "while similar in form to previous iMac G5 models, these models are not compatible with Apple's iMac G5 VESA Mount Adapter Kit."
The 17-Inch and 20-Inch iMac models from the "White" series iMac Core 2 Duo have the same housing and stand as the original Intel powered iMac Core Duo series, and these models are VESA non-compliant as well. The new 20-Inch "Aluminum" iMac Core 2 Duo models also are not VESA compliant.
The confusion is because Apple at one time did provide an optional VESA adapter kit with similar iMac models. The earlier iMac G5 models that could be made VESA compliant with adapter kits by Apple were: Two models with 20-inch displays – the iMac G5 / 1.8 20-Inch and G5 / 2.0 20-Inch, and three models with 17-inch displays – the iMac G5 / 1.6 17-Inch, G5 / 1.8 17-Inch, and G5 / 2.0 17-Inch.
With regards to iMac models offered after these pre-iSight models, only the 24 "iMac computers have had VESA adapter kits available from Apple. The 17" and 20 "iMacs were left having no VESA bracket kit option and more importantly, no easy method for removing the stand. Because of this, and the fact that most people who purchased the 17 "and 20" iMac as a "portable" computer, it made sense to develop a VESA adapter that would not require the stand to be removed or any modification to be made to the iMac computer. This VESA adapter kit provides the best of both worlds to the end user as it allows them the ability to attach their iMac to a VESA mounting system and mount their iMac the way they would like to ie, above a work surface, wall, kitchen cabinet, etc. And, when they decide to temporarily move their iMac to a different location, or take it with them when they travel, the iMac is ready to go with a few turns of the bolt assembly.
If you are searching for a VESA adapter kit to mount your iMac 17 "or iMac 20", including the new Aluminum iMac 20 ", to a wall mount system, articulating arm or any mounting system, your search is about. the iMac VESA Adapter Kit for 17 "and 20" iMac we provide, please visit our website.