Apple iMac SMC Firmware Update 1.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This Mac application was originally designed by Apple.
From the developer:
iMac SMC Firmware Update is recommended for iMac (late 2013) with flash-only storage. This update improves the Power Nap feature in OS X 10.9 Mavericks on your flash-based iMac by allowing it to perform silently, without spinning up the fan.
Power Nap periodically updates apps, such as Mail, Contacts, and Calendar, and will download software updates while your iMac is sleeping.
You may want to check out more Mac applications, such as MacBook SMC Firmware Update or MacBook Pro SMC Firmware Update, which might be related to Apple iMac SMC Firmware Update.
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