A: Answer Consider the following when purchasing an SSD upgrade. This site below covers the ranges of SSD's and similar types of devices. It covers the advantages and disadvantages of your options. One thing to keep in mind, when I went to Best Buy to pick up my SanDisk Ultra 1TB 3-D SSD, they tried to hand me a SanDisk Ultra II 960GB SSD drive and told me that it was how they are labeling the drives. The read/Write times were not as high as the one I found online. I didn't fall for it so I hope you don't either. Make sure that they give you something that looks exactly like what you have decided on. Also, The 3-D part means that they stack the memory cells on top of one another. This is a newer technology, but allows for more storage in a smaller space. Another thing to keep in mind is that I have had an older tech SSD before, after some number of years and the memory starts to fail, you will begin to see glitches in the operating system and files.The SanDisk SSD however has an application that you can install which allows you to monitor the life and health of the SSD. It is a good idea to install it. But I don't recommend changing any setting that you haven't researched first, TRIM for example can help to improve the performance of the SSD, but could shorten the life of the drive. Bottom line, if you haven't used an SSD before, I will tell you that it will boost performance more that any other upgrade. https://www.anandtech.com/show/9799/best-ssds

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