TLDR; yes, it is possible to add an SSD to a 2011 27" iMac without going through too much hoopla. Between everyone having issues finding parts, non-workable guides (due to parts), and general ...

So what if you've done everything you can, but your iMac is still sluggish? Grab a speedy external SSD and do an OS X brain transplant!

Gut your iMac like a pro with OWC’s solid state drive installation kit Other World Computing has introduced a $45 kit to help adventurous iMac owners add an SSD to their all-in-one.

Most 2013 and later iMacs ship with proprietary PCIe SSDs, many of which are old, slow, and small. Upgrading to an SSD not made by Apple, including common M.2 types, will save you tons of money ...

Pretty simple, get a ssd add it into your imac or on a mbp move the hdd to your SuperDrive slot and put the ssd in your hdd slot and then boot from a os x install usb drive and with some coding in ...

So I decided the Crucial M4 SSD prices were looking quite reasonable and grabbed myself a 512GB and a 256GB. Two slightly different uses for my 2010 27" iMac: The first was the traditional "stick ...

Unfortunately, with Apple ’s all-in-one iMac, installing an SSD is complicated and probably not the best choice for a DIY project; however RAM upgrades are easy. At least for most Macs.