Refurbished ≠ used/second-hand

A refurbished server is a machine from a leasing program or a data center upgrade that has undergone diagnostics, replacement of worn components, and stress testing, backed by a seller's warranty. 'Grey' used equipment from classified ads is a lottery with no warranty: unknown drive usage, damaged memory slots, or signs of overheating. The price difference between them is smaller than it seems, but the difference in risk is substantial.