I got the used NUC.First, product arrived a day early. Nicely packed, essential components included.Second, the product came with 8G ram! One of the sticks was unseated, and I suspect it was why the product was returned.  Once I fixed that, the NUC booted up, so  I returned the ram I ordered.  I saved even more money.After I reset the BIOS to defaults, added a spare SSD I have, installed RHEL, I’m in business.Thank you,  really got good value for this used purchase.