Synology High Density HD6500All the space you will ever need. The Synology High Density HD6500 redefines enterprise scale storage with a dense 4U rackmount chassis that houses 60 drive bays, delivering extraordinary capacity in a compact footprint. Designed for modern data centers and production environments, the HD6500 supports expansion up to 300 drives, enabling organizations to scale without migrating to larger enclosures or disruptive migrations. This high density storage