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Amazon.com: 2nd HDD SSD Caddy for Apple iMac Mid-2007 20-Inch Desktop Computer A1224 Core 2 Duo 2.0 2.4 MA876LL MA877LL, Second 2.5" Hard Disk Drive Enclosure Adapter, CD DVD SuperDrive Optical Bay
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2nd HDD SSD Hard Drive Caddy Frame Tray for iMac Mid 2008 2007 2006 24" 21" 27" | eBay
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A-Tech for Apple 6GB Kit (1x2GB + 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com
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Upgraded my mid-2007 iMac to the latest version of macOS. 13 years and still kicking as my daily driver. : r/MacOS
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