Synology HD6500 60-Bay Rackmount NAS Enclosure
High Density HD6500
Scalable high-density storage server for multi-petabyte applications

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.

CPU
2 x 10-core Intel Xeon Silver

Throughput
Over 6,688/6,662MB/s sequential read/write

Memory
64 GB DDR4 ECC, expandable to 512 GB

Scalability
Expand to 300 drives with four RX6022sas expansion units
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
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.
Failover and network balancing

Back up Synology storage systems
Use Hyper Backup to back up files, LUNs, installed applications, and system configurations from tens or hundreds of Synology servers to your HD6500. Set and forget backup tasks with regular schedules, enhance security with fine-grained user permissions and encryption, reduce backup sizes with built-in deduplication, and restore data flexibly with multi-versioning.
Learn more Snapshot Replication enables configurable point-in-time snapshots of shared folders and LUNs with an RPO as low as 5 minutes and recovery within seconds.
Learn more Bare-metal backup for Synology NAS
Centrally manage bare-metal backups of all your Synology servers from a single centralized console on your HD6500. Leverage built-in deduplication technology to reduce backup sizes and multi-versioning to allow flexible restoration.
Back up Windows and Linux endpoints
Bare-metal PC, server, and VM backup
Securely back up Windows clients and servers, Linux endpoints, Synology servers, and VMware® and Hyper-V® virtual machines to the HD6500 with Active Backup for Business. Coordinate all data protection from the centralized management console and choose between bare-metal or file-level restoration, while leveraging built-in deduplication technology to reduce backup sizes.
SaaS protection with local backups
Protect full Microsoft 365 and Google Workspace accounts by maintaining complete offline copies of your crucial information and configurations with Active Backup for Microsoft 365 and Active Backup for Google Workspace.
Main surveillance storage
Manage distributed deployments of hundreds of local recording servers and thousands of IP cameras centrally.
Centralized, secure, and scalable surveillance
Flexible scaling and expansion
Connect up to 650 IP cameras4 from a selection of over 8,300 validated models to the HD6500 itself, or connect hundreds more by adding recording servers at the edge. Easily add storage as deployments grow.
Central management and recording
Manage up hundreds of Synology NAS or NVR recording servers from one host, store copies of all or some recordings centrally, and monitor all streams from one interface with Surveillance Station Centralized Management System.
Secure and private video storage
Admins can set detailed rules for who can check live streams or review recordings and footage can be protected against unauthorized access with industry-standard AES-256 encryption.
Anywhere access with multiple clients
Watch and analyze live streams or recordings from web browsers, desktop clients, or mobile apps.
Advanced deployment and analysis options
Batch and automated camera deployment
Automatically locate cameras within a set IP range or configure units in batch by importing spreadsheets and conveniently replicate settings to new cameras.
Instant event streaming on multi-location maps
Preview footage directly on multi-floor, multi-location maps when events are detected to stay on top of your deployment, with Google Maps and OpenStreetMap integration to make geographically spread-out deployments easier to monitor.
Dual recording, locally and to the cloud
Record each camera’s footage to two Synology servers simultaneously for added redundancy and instant access — for instance, to a smaller device at the edge and a larger central management server. Stream feeds directly to the cloud with C2 Backup for Surveillance for fast access and convenient sharing whenever you need evidence.
Event detection and smart analytics options
Add support for deep learning-powered algorithms and detection profiles such as intrusion detection, license plate recognition, congestion alerts, and face recognition by joining Deep Learning NVR servers to your deployment.

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.
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Security
Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications
Hardware Specifications |
CPU | CPU Model | Intel Xeon Silver 4210R |
| CPU Quantity | 2 |
| CPU Core | 10 |
| CPU Architecture | 64-bit |
| CPU Frequency | 2.4 (base) / 3.2 (turbo) GHz |
| Hardware Encryption Engine | |
Memory | System Memory | 64 GB DDR4 ECC RDIMM |
| Memory Module Pre-installed | 64 GB (32 GB x 2) |
| Total Memory Slots | 16 |
| Maximum Memory Capacity | 512 GB (32 GB x 16) |
| Notes | - Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
- Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
- For multi-module memory configurations, all modules must be identical and share the same model number. Check the Product Manual of your Synology product for recommended memory configurations.
|
Storage | Drive Bays | 60 |
| Maximum Drive Bays with Expansion Unit | 300 (RX6025sas x 4) |
| SAS multipathing | |
| Drive Type (See all supported drives) | - 3.5" SAS HDD
- 2.5" SATA SSD
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| Hot Swappable Drive* | |
| Notes | - To install 2.5" SATA SSDs, optional 2.5" drive trays (R5) must be purchased separately. Learn more
- Two Synology SATA SSDs are included in the accessory pack for use as system drives.
- Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability.
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External Ports | RJ-45 1GbE LAN Port | 2 |
| RJ-45 10GbE LAN Port | 2 |
| Out-of-Band Management LAN Port | 1 |
| Max. Number of LAN Ports | 15 |
| USB 3.2 Gen 1 Port | 2 |
| Expansion Port | 2 |
| Expansion Port Type | Mini-SAS HD |
| Notes | Besides the 5 built-in LAN ports, up to 10 additional LAN ports can be made available by installing compatible network interface cards (sold separately). |
PCIe | PCIe Expansion | - 2 x Gen3 x16 slot (x16 link)
- 2 x Gen3 x8 slots (x8 link)
|
Appearance | Form Factor (RU) | 4U |
| Size (Height x Width x Depth) | 176 mm x 482 mm x 1020 mm |
| Weight | 37.9 kg |
| Rack Installation Support* | 4-post 19" rack (Synology Rail Kit - RKS-03) |
Others | System Fan | 80 mm x 80 mm x 4 pcs |
| Fan Speed Mode | - Full-Speed Mode
- Cool Mode
- Quiet Mode
|
| Easy Replacement System Fan | |
| Power Recovery | |
| Noise Level* | 60.8 dB(A) |
| Scheduled Power On / Off | |
| Wake on LAN / WAN | |
| Power Supply Unit / Adapter | 1600 watts |
| Redundant Power Supply | |
| AC Input Power Voltage | 200V to 240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption* | 1025.2 watts (Access) 418 watts (HDD Hibernation) |
| British Thermal Unit | 3495.93 BTU/hr (Access) 1425.38 BTU/hr (HDD Hibernation) |
| Notes | - Noise Level Testing Environment: Fully loaded with Synology HAS5300-8T hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
- Power consumption is measured when it is fully loaded with Synology 8TB HAS5300-8T hard drive(s).
|
Temperature | Operating Temperature | 0°C to 35°C (32°F to 95°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
| Relative Humidity | 5% to 95% RH |
Certification | - FCC
- CE
- BSMI
- VCCI
- RCM
- UKCA
- EAC
- KC
- BIS
- UL
|
Warranty | 5 Years |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) |
Environment | RoHS Compliant |
Packaging Content | - Main Unit X 1
- Synology SATA SSD X 2
- Rail Kit Sliding: RKS-03 X 1
- Accessory Pack X 1
- AC Power Cord X 2
- Quick Installation Guide X 1
|
Optional Accessories | |