My NUC8i3 failed so I ordered used NUC8i5 from DigitalCPU. Received NUC8i5 is working, however supplied AC/DC adapter is from older NUC5i3 (less power), so I used mine from dead NUC8.Received NUC8i5 was dirty.  Is it really so big problem to clean product before shipping?  Sending dirty product shows disrespect for buyer.