I ordered two of these. They were advertised as being refurbished by a certified refurbisher. These were going to be put in use as a continuous operation thin client, so i decided to double check the condition of the internals. I opened the case and on both units, the hard drive was installed incorrectly, and both were missing hard drive mount grommets. I pulled the heat sinks off the processors to check thermal paste. on the first, only 75% of the processor had contact with the heat sink from thermal paste, and the silicon thermal pads were falling apart and missing in some places.  On the second unit, it appeared that thermal paste was applied by a stencil, however only about 50% of the processor was making contact because the heat sink was installed incorrectly, and the mounting screws were cross threaded into the chassis. This unit also had degraded silicon pads. I corrected the issues myself and put these in service. They are functioning well. Had this been left as provided, hot spots on the processors would have significantly impacted performance and shortened the life of the processors.I did reach out to the seller and was offered a return authorization. I let them know that I corrected the issue, and it was pretty much left at that. I guess I expected something to cover my efforts to correct their failed attempt at refurbishing. I did ask if thermal management was something they addressed in their refurbishment process and did not get an answer on that. Being that I ordered 2, and both were in poor condition, I suspect this is the level of quality that can be expected.I realize these are older units, and I would fully expect this quality from a private seller or surplus purchase, but I specifically ordered refurbished units to ensure they would serve the purpose I needed. I still think I got a good deal with this purchase, but understand, you will need some level of technical capabilities to ensure these meet the needs you have. Always check, because the issues above would quickly render these paperweights. Had these failed due to me not checking, the rating would have been 1 star, but because i was able to catch this ahead of failure, I saved the seller 2 stars on this review.