Chosen Solution
I have already replaced my main drive with a Seagate 2TB FireCuda Gaming SSHD (Solid State Hybrid Drive) - 7200 RPM SATA 6Gb/s 64MB Cache 3.5-Inch and OWC In-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2011 about a year ago. I just purchased the dual hard drive kit and want to add a SSD behind the optical drive. Here are my questions: What is the max size SSD can I add? Do I need to purchase the OWC In-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2011 to add to the SSD? Is there anything I am forgetting? I’m already replacing the power supply and only want to open it up one more time if possible.
Here’s a link to a dual drive upgrade kit from iFixit. It has all you need to install that dual drive for a good price. Here’s how you set it up. The maximum you can go with the dual drive (this is the setup my robotics team has on their identical iMac) is 2 TB.
