All the space you will ever need With 60 bays in a 4U rackmount enclosure and support for up to 300 drives after expansion, the Synology HD6500 is the ideal high-density storage solution for large-scale warm and cold storage applications such as full system backups, video post-production, and large surveillance deployments. Consistent performance at five times the size The HD6500 is designed to scale up to 5 times in capacity with four additional RX6022sas expansion units. SAS multipath-enabled connectivity provides up to double the typical performance together and increased redundancy. Built for high reliability The HD6500 is built to keep mission-critical data and services accessible, so that businesses can continue to perform even when disaster strikes. Out-of-band (OOB) management Simplify troubleshooting by managing powered-down devices remotely and accessing critical logs through a dedicated interface. Dual power supply Reduce the possibility of power disruptions on a single distribution channel or PDU adversely impacting data and service availability with redundant PSUs. High-reliability expansion architecture Redundant SAS links prevent single points of failure from affecting other expansion units, ensuring higher data and service availability. Powerful networking options The HD6500 supports a large variety of networking interfaces, protocols, and configurations, whether you need fast sequential transfer, support for simultaneous connections, or high network redundancy. Built-in fast connectivity Three Gigabit Ethernet and two 10GbE RJ-45 ports allow for rapid transfer speeds right out of the box. Mix and match network ports Add extra 10GbE SFP+/RJ-45, 25GbE SFP28, or Fibre Channel ports in varying configurations by leveraging the four expansion slots.2 Failover and network balancing Bond multiple network interfaces with Link Aggregation to enable automatic network failover and load balancing. Consolidate your data storage Back up your backup solutions, bring all your files together in one place, or bring distributed surveillance deployments under central control. Massive file server Host and retrieve massive files from extensive archives whenever needed. Provide user friendly access and set up powerful cross-site syncing. Central backup server Protect large numbers of PCs, servers, Synology systems, and hypervisors, or back up your backup servers with a central storage solution. Main surveillance storage Manage distributed deployments of hundreds of local recording servers and thousands of IP cameras centrally. Get more with DiskStation Manager Take advantage of a host of native productivity, management, and security solutions available in the web-based Synology DSM operating system.