$540.00 USD

The Ergotron WorkFit-A lets you move from sitting to standing at work. This can be a distinct relief to the body, which can get saddled with back pain, bad posture and slow metabolism due to long, continous hours of sitting.

One of the highlights of this WorkFit-A is its innovative design, which does not require the iMac stand to be removed before mounting as long as the weight of the iMac monitor satisfies the weight capacity of this workstation (please see the compatibility guide given below). The stand of the iMac slips easily into the assembly of this WorkFit-A so no VESA adapter kit or built-in VESA configuration on the monitor is required. This also gives you the flexibility to dismount your iMac from the workstation and move it wherever you want.

 for Apple Compatible Ergotron 24-414-227 WorkFit-A Sit-Stand Workstation

Technical Specifications

LCD size







LCD Size







21.5" - 27" 12 - 27.5 lbs

5.5 - 12.5 kg


45 cm

30° 180° - -

Product Information

Part Number


WorkFit-A, Sit-Stand Workstation, for Apple (silver)


  • Arm
  • Worksurface
  • Base
  • Keyboard tray support
  • Keyboard tray
  • Desk clamp
  • Grommet mount
  • Assembly fasteners
  • Cable management hardware
  • Adjustment tools


27" iMac models from late 2012 to present that include a built-in base; 21.5" iMac models from late 2009 to present that include a built-in base; Thunderbolt Displays and LED Cinema Displays (27" and 24")

Maximum Capacity

27.5 lbs (12.5 kg). This is the sum weight of all hardware added to the workstation, including iMac computer or display (Thunderbolt Display or LED Cinema Display), keyboard, mouse and contents placed on worksurface. The weight of the iMac or display should never exceed 23.5 lbs (10.7 kg). A minimum load of 12 lbs (5.5 kg) must be applied to the unit to ensure proper operation


  • Weight of 27" iMac (late 2012 to present) = 21 lbs (9.5 kg)
  • Weight of 21.5" iMac (late 2012 to present) = 12.5 lbs (5.7 kg)
  • Weight of 21.5" iMac (late 2009 through late 2012) = 20.5 lbs (9.3 kg)
  • Weight of 27" Thunderbolt Display and 27" LED Cinema Display = 23.5 lbs (10.7 kg)
  • Weight of 24" LED Cinema Display = 21 lbs (9.5 kg)


Screen tilt of 30° is built into the iMac base; WorkFit does not provide additional screen tilt capability. Keyboard tray tilt range = 20°

Keyboard Tray

When in seated position, keyboard tray can drop down approximately ? 4" (10 cm) below level of desktop surface, placing the keyboard at the optimum ergonomic height

Mounting Surface Requirements

When installed using Desk Clamp option, can be configured to work with desk surfaces up to 31.5" (80 cm) deep. When installed using Grommet Mount option, center of through-hole should be no more than 29.5" (75 cm) from front edge of desk surface. These requirements ensure that the suspended keyboard tray can extend past the desktop’s front edge

Desk Clamp

Attaches to edge up to 2.5" (65 mm) thick; grommet mount attaches through hole 0.5" to 2.5" (7–65 mm) wide and up to 2.5" (65 mm) thick.

Worksurface Dimensions

22.6" W x 14.4"D (575 x 366 mm)

Keyboard Tray Dimensions

24" x 7.5" (609 x 191 mm)

Integrated Cable Management

Hides cords

Product Weight

34.7 lbs (15.7 kg)

Shipping Dimensions

21.5" x 11" x 37" (55 x 28 x 94 cm)

Shipping Weight

42.5 lbs (19.3 kg)


Five (5) years

Compatibility Guide

WorkFit-A for Apple. Please reference the guide below to determine if your iMac or Apple Display is compatible with the WorkFit-A for Apple.

Current Apple Products

27-inch iMac (Late 2013)


21.5-inch iMac (Late 2013)


Thunderbolt Display (27-inch)


LED Cinema Display (27-inch)

Also try the WorkFit-S, Single HD

Legacy Apple Products

27-inch iMac (Late 2012)


27-inch iMac (Mid-2011)

Not compatible. Try the WorkFit-S, Single HD

27-inch iMac (Mid-2010)

27-inch iMac (Late 2009)

21.5-inch iMac (Late 2012)


21.5-inch iMac (Mid, Late 2011)


21.5-inch iMac (Mid-2010)


21.5-inch iMac (Late 2009)


iMac models prior to Late 2009 are unknown or not compatible

LED Cinema Display (24-inch)


Cinema Display (30-inch)

Not compatible. Try the WorkFit-S, Single HD

Cinema Display (23-inch)

Cinema Display (20-inch)


  • Aluminum construction gives it a sleek, modern look
  • Designed to match the look of your iMac
  • Compatible with the latest 21.5" and 27" iMacs, 27" Cinema Displays and 27" Thunderbolt Displays
  • Keyboard drops up to 4" below the desktop in sitting position for ergonomic relief to shoulders, forearms and wrists
  • Worksurface facilitates storing of papers, writing materials, phone and a tablet
  • Apple compatible workstation : WorkFit-A workstation especially for the latest iMacs
  • 18" height adjustability: Allows sitting or standing while working, depending on your height
  • 12-27.5 lbs weight capacity: Maximum weight of the display should not exceed 27.5 lbs
  • 21.5" to 27" screen size: Supports monitors between 21.5" to 27" screen size
  • No Adapter : No VESA adapter or built-in VESA configuration required
  • Design : An iMac can be mounted on this workstation along with its stand in such a way that the stand fits under the worksurface
  • Please see, if you want to install your MacBook onto a sit-stand workstation
  • Please check the Compatibility Guide below or call us to confirm the compatibility of your Apple monitor with this workstation
Model 24-414-227
Manufacturer Ergotron
Part Number 24-414-227
UPC 698833039788
Color Silver
Monitor Size 21.5" – 27"
Weight Capacity 12–27.5 lbs (5.5–12.5 kg)
Lift (48 cm) 19 in
Tilt 30 degree
Pan 180 degree
Worksurface Dimensions 22.6" W x 14.4"D (575 x 366 mm)
Keyboard Tray Dimensions 24" x 7.5" (609 x 191 mm)
Weight 34.7 lbs (15.7 kg)
Shipping Dimensions 21.5" x 11" x 37" (55 x 28 x 94 cm)
Shipping Weight 42.5 lbs (19.3 kg)
Warranty Five (5) years
Monitor Arm Types Apple Monitor
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