An optiplex seems to meet the needs. Check newegg
Even better, go with Macrium Reflect Free. I've upgraded dozens of systems from spinny disk to SSD using Macrium.
"No free man shall ever be debarred the use of arms." - Thomas Jefferson, Virginia Constitution, Draft 1, 1776
I just got 4 of these for my office and they're aces. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Much like building an AR, you could likely build a better one for less but you have to know what you're doing (which I don't). But honestly, these are great. They seem to be beyond capable for mundane work stuff - running multiple Office apps and browsers.
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I've been using Transcend (as it is cheaper) for a lot of time and it was ok for almost everything I needed. Until once it wasn't recognized on the computer. I tried several times and on different computers and it also didn't work. I had a small panic attack back then as I thought I lost all my uni documents. I appealed to professionals, to make a DATA RECOVERY, and thank god the guys helped me.