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D  HOME††††MAC DESKTOP PARTS††††iMac Parts††††iMac - Power Supplies
27" iMac (Mid 2010) - 310W Power Supply
SKU No:  POWER-57255-N
Service Description:
Select this item if you have a 27 inch iMac (Mid 2010) model with a bad Power Supply. This is a genuine, NEW Apple replacement power supply. Guaranteed to be 100% compatible with this iMac model.

Note: There are several different power supplies that Apple has used in 27-inch iMacs - and, they are not interchangeable. Make sure that your iMac's EMC matches with the part you are planning to order..

We also offer a full-service repair alternative which includes installation. You will find the repair solution you need for your 27-inch iMac here -> 27-inch iMac Power Supply Repair

What's Included?
27" iMac (Mid 2010) - 310W Power Supply
27" Intel iMac - Power Supply - Example
Price :  
How It Works:
90 day warranty covers the replacement of the failed part. We pay to ship the replacement part to you. You pay to ship the failed part back to GALAXY.
27-inch iMac - Mid 2010 - identifiers:

EMC Number: EMC 2390
Model Number: A1312
Sales Order Numbers: MC510LL/A (3.2 GHz) Core i3; MC511LL/A (2.8 GHz) Core i5; MC511LL/CTO (3.6 GHz) Core i5
Model identifier: iMac11,3
Apple Service Part No: 661-5468
Label Nos: 614-0446; PA-2311-02A; ADP-310AF
EEE Numbers: 6YU; DUU; DWW


The Model Identifier number is listed in System Report/System Profiler (About This Mac), so, only visible if the computer boots that far. Label and EEE numbers are printed on the part. Major Apple component have their own serial number - a mix of letters and numbers. The EEE number sequence is located towards the very end of this serial number. The EEE number is a foolproof way of ensuring compatibility between the part you have and the part selected to replace it.

'CTO' or 'BTO' located at the end of a Sales Order Number indicates that the computer was Configured to Order (Built to Order) by Apple.

For additional surety that you are ordering the correct part include the computer's serial number in the COMMENTS field when placing your order. We will confirm compatibility prior to shipping the order. Since parts are purchased especially to fill each individual order placed with us, all sales of Apple service parts are final. [Obviously this means that you receive a working part that corresponds to the one you order!]

If you need confirmation that your power supply is faulty, or prefer a turnkey solution in which GALAXY will both repair and install the part for you, we offer a full-service repair alternative. You will find the repair solution you need for your 27-inch iMac here -> 27-inch iMac Power Supply Repair

Not Applicable

Broken Mac?

If youíve got a broken Mac youíve found the ideal place to get it fixed!

Thatís because we are experts in the component-level repair of broken Mac parts.

Benefits of repair services by GALAXY include . . .
  • FREE Diagnostic Testing!
  • Affordable, flat-rate Pricing!
  • Optional FREE shipping.
  • A reliable, fully-working Mac!
         Learn More
Mac Serial Number:
You will find your Mac's serial number by selecting About This Mac from the Apple menubar.

If you have a non-working Mac you'll find the serial number printed on the case:

MacBook/Pro/Air; Mac Minis - bottom case by the regulatory markings.
iMac (all models) - underneath the stand.
Mac Pro family - back of the case (2006-2012 models); bottom of the case (2013 models).
FREE Technical Support:
- Contact us if you need help with troubleshooting a Mac problem or with installation of a replacement Apple part:     FREE Tech Support

- We have access to thousands of Apple parts but only those in high demand are listed on our site. If you need a specific Apple part that isn't listed here please contact us, we almost certainly will have it available at a reasonable price:      Mac Parts Request