Hello every Macuser Now it so I have great desire to remove my CD reader in my iMac 27" 2009. I wonder if it goes? I want to have the SSD and then a hard drive in it. I thought when taking out my hard drive and buy a less quiet. Because I have a seagate and I think it makes to much noise for me. What size hard drives in the iMac? 2.5 or 3.5 SATA?