RME ADI-2 DAC FS in mint condition.  Purchased from Sweetwater 29 AUG 2023 and used for about 10 hours on my desktop computer before I decided to use a different peripheral.  This is the second RME ADI-2 DAC FS I purchased last year, and I am extremely pleased with the quality.  Serial number 59740064 B and firmware recently updated to RME current published version.