OWC SSD Upgrade Kit For 2010 27-inch iMacs, OWC Mercury Electra 250GB 6G SSD, 18" SATA III 6Gbps data cable, SSD Power Cable, Installation tools and iMac screen adhesive tape set :
Apple iMac Repair, iMac Upgrade, iMac SSD Upgrade – TECHWERX
iMac Intel 27" EMC 2309 and 2374 Hard Drive Replacement - iFixit Repair Guide
iMac Intel 27" EMC 2309 and 2374 Hard Drive Replacement - iFixit Repair Guide
OWC DIY Drive Upgrade/Install Kits for Apple iMac Models
How to upgrade iMac 2019 from fusion HDD to SSD (4k) - YouTube
🛠️ 🖥️ 🍏 💽 iMac 27" 2012-2015 Hard Drive Replacement or SSD Upgrade - YouTube
iMac Hard Drive Upgrade to SSD - Apple iPhone iPad Mac Repairs Medway Kent
iMac 27" Late 2015 A1419 4K - SLOW Fusion hard drive replacement with new internal SSD, MUCH FASTER! - YouTube
27” Mid 2010 iMac Disassembled
SSD Upgrades for Apple iMac 27-Inch Late 2013 - 2019
How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac
How to Upgrade the Main Drive in a 27-inch iMac Mid 2010 (Updated) - YouTube