Identify the ports on your Mac - Apple Support
Adding USB3.0 to late 2009 iMac (11,1) | MacRumors Forums
21.5- and 27-inch iMacs (Mid 2011) | Macworld
The Ins and Outs of Your iMac's Target Display Mode
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Which Mac port is the best to use for external storage? | Macworld
iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com
4-Port USB 3.0 Hub For iMac - Sabrent
Repairing a Bad USB Port on a Late-2011 15" MacBook Pro - YouTube
Looking to connect a mid 2011 iMac to an external monitor, these are my connections available. What are my options? : r/applehelp
New Satechi USB-C Slim Dock Expands Storage And Extends USB Ports On The 24″ iMac - IMBOLDN
Identify your iMac model - Apple Support
iMac (21.5-inch, Mid 2011) - Technical Specifications | Imac, Apple smart keyboard, Laptop memory
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Amazon.com: Mini DisplayPort to HDMI Adapter for iMac Mid 2011(27-inch, 21.5 inches) Mini DP to HDMI Adapter Compatible with MacBook Air/Pro, Microsoft Surface Pro/Dock, Projector and More 1-Pack : Electronics
USB 3.0 for iMac mid 2011 | MacRumors Forums
Apple iMac 21.5-inch i5 2.5GHz Quad-Core | Nofeka Uganda
Can I use a Mid 2011 27 inch iMac (Thunderbolt) as a display for a PC? - Ask Different
Apple updates iMacs with Sandy Bridge processors, Thunderbolt ports, FaceTime HD camera and more - 9to5Mac
Identify your iMac model - Apple Support
USB-C and Thunderbolt: Understanding Ports and Cables for Macs and iPads - The Mac Security Blog
Apple iMac 21.5-inch 2.5GHz Quad-core i5 (Mid 2011) MC309LL/A 3 | mac of all trades
iMac (21.5-inch, Mid 2011) - Technical Specifications
4-Port USB 3.0 Hub For iMac - Sabrent
iMac Intel 21.5" EMC 2428 Audio Ports Replacement - iFixit Repair Guide
The 27-inch Apple iMac Review (2011)
