[WindowsCentral.com]

Use the code PRECISION50DT at the Dell Refurbished Store to save 50% on any refurbished Dell Precision desktop computer not on Clearance. The code also includes free shipping. The savings end August 21.
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There are a large variety of options to choose from depending on how much you want to pay and what specifications you need in your desktop. Use the left sidebar to narrow down the options, like if you want Windows 10 or a certain amount of memory.

Full story from the WindowsCentral blog...