iMac Intel 27" (Mid 2010) Dual Hard Drive Kit - iFixit Store
OWC Complete HDD Upgrade Kit for Apple iMac 2009-2010
OWC DIY Drive Upgrade/Install Kits for Apple iMac Models
Installing additional SSD in Mid-2010 27" iMac
iFixit Offers Kit To Install 2nd Hard Drive in Mid-2011 iMacs | MacRumors Forums
How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com
Replacing HDD with SSD in iMac 2010 | Yktoo
Amazon.com: OWC 120GB 3G SSD and HDD DIY Complete Bundle Upgrade Kit for Late 2009-2010 iMacs, (OWCKITIM09HE120) : Electronics
DIY Bundle 480GB OWC 6G SSD Kit for Late 2009-2010 iMac
iMac 2009, iMac 2010 and iMac 2011 - Apple Broadcom BCM94360CD - 802.11 a/b/g/n/ac with Bluetooth 4.0 Upgrade Kit | www.osxwifi.com | Native Support for Apple Broadcom BCM94360CD and BCM943602CDP for PC
Amazon.com: OWC OWCDIYIM27SSD10 Solid State Drive Kit for Apple iMac 2 : Electronics
Amazon.com: OWC 500GB 3G SSD and HDD DIY Complete Bundle Upgrade Kit for Late 2009-2010 iMacs, (OWCKITIM09HE500) : Electronics
How To Upgrade Your iMac with an SSD (2021 updated) | Upgradeable Australia