Use this guide to add a second Hard Drive or SSD to your Late-2009 / Early 2010 model 21.5-inch iMac.
For information on how to go about cloning or migrating data from your existing storage drive, see our Installation Guide Page.
Tools
- iMac General Servicing Kit (contains all the required tools)
- Optical Bay SATA HDD/SSD Enclosure
- Anti-static wrist strap
- Medium Anti-static mat