Apologies if this has been asked before, it's not a subject I've been able find an answer for. I have a mid 2011 27" iMac which was shipped with the Apple supplied SSD and 2Tb mechanical HDD. I've already replaced the HDD with a 4Tb device and used the OWC temperature sensor. That's working perfectly well. My question is related to the SSD and this is where info seems to be sparse. There are plenty of discussions about adding an SSD in the optical drive space or replacing the existing HDD but nothing I can find about the original SSD. Can I just rip it out and replace it with an SSD with higher capacity? It's the 250Gb drive and I'd like to replace it with a much larger (and potentially faster) drive. Does it need a temperature sensor addition? If so, where can I find one? I would appreciate any advice on this. Thanks.