60-bay 4U high-density storage server
Synology HD6500 60-Bay High-Density Storage Server
The Synology HD6500 is a 4U high-density storage server for large-scale warm and cold data, combining 60 front drive bays, dual Intel Xeon Silver processors, 64 GB DDR4 ECC memory and expansion to 300 drives.
- Processor
- 2 × Intel Xeon Silver 4210R
- Memory
- 64 GB DDR4 ECC RDIMM
- Drive bays
- 60 / up to 300
- Networking
- 2 × 10GbE + 2 × 1GbE + OOB
Scale large storage estates without multiplying rack systems
The HD6500 concentrates high-capacity SAS storage into a serviceable 4U chassis and connects up to four RX6025sas expansion units for a verified 300-drive ceiling. Dual processors, redundant power, multipath expansion connectivity and out-of-band management suit organisations planning dense backup repositories, media archives or surveillance storage.
Sixty front drive bays
Deploy compatible 3.5-inch SAS HDDs or 2.5-inch SATA SSDs in one dense 4U platform.
Expansion to 300 drives
Four RX6025sas expansion units can extend the system to a verified maximum of 300 drives.
Dual-processor platform
Two Intel Xeon Silver 4210R processors provide a 10-core, 20-thread architecture per CPU.
Large ECC memory ceiling
The included 64 GB DDR4 ECC RDIMM can be expanded to 512 GB across 16 slots.
Built-in fast networking
Two 10GbE, two 1GbE and one dedicated out-of-band management port are built in.
Service-continuity hardware
Redundant power, replaceable system fans and SAS multipathing support resilient infrastructure planning.
Who is the Synology HD6500 best for?
A strong choice for
- Large backup and archive repositories
- High-density media and video data
- Surveillance storage at scale
- Data centres consolidating many drives
- Teams requiring out-of-band management
Consider another model if you need
- Your power environment cannot provide 200–240 V AC
- You need a smaller rack footprint
- Your deployment requires SATA HDD rather than the verified SAS HDD category
- You do not need expansion beyond a conventional rackmount NAS
Key specifications
- Model
- HD6500
- Product type
- 60-bay 4U high-density storage server
- Processors
- 2 × Intel Xeon Silver 4210R
- CPU frequency
- 2.4 GHz base / 3.2 GHz turbo
- System memory
- 64 GB DDR4 ECC RDIMM
- Maximum memory
- 512 GB (32 GB × 16)
- Drive bays
- 60; up to 300 with RX6025sas × 4
- Drive types
- 3.5-inch SAS HDD or 2.5-inch SATA SSD
- Built-in network
- 2 × 10GbE, 2 × 1GbE, 1 × OOB
- PCIe expansion
- 2 × Gen3 x16 and 2 × Gen3 x8
- Dimensions
- 176 × 482 × 1020 mm
- Warranty
- 5 years
Full technical specifications
Processor and memory
| CPU model | Intel Xeon Silver 4210R |
|---|---|
| CPU quantity | 2 |
| CPU cores | 10 per processor |
| CPU threads | 20 per processor |
| CPU architecture | 64-bit |
| CPU frequency | 2.4 GHz base / 3.2 GHz turbo |
| Hardware encryption engine | Supported |
| System memory | 64 GB DDR4 ECC RDIMM |
| Pre-installed memory | 64 GB (32 GB × 2) |
| Total memory slots | 16 |
| Maximum memory | 512 GB (32 GB × 16) |
| Memory guidance | Use identical Synology modules and follow the exact-model manual |
Storage, network and expansion
| Drive bays | 60 × 3.5-inch SAS HDD or 2.5-inch SATA SSD |
|---|---|
| Maximum drive bays | 300 (RX6025sas × 4) |
| System drives | 2 × 2.5-inch SATA SSD |
| SAS multipathing | Supported |
| Hot-swappable drives | Supported |
| 2.5-inch drive tray | Optional R5 tray required for 2.5-inch SATA SSD installation |
| RJ-45 1GbE ports | 2 |
| RJ-45 10GbE ports | 2 |
| Out-of-band management port | 1 |
| Maximum LAN ports | 15 with compatible add-in cards |
| USB ports | 2 × USB 3.2 Gen 1 |
| Expansion ports | 2 × Mini-SAS HD |
| PCIe expansion | 2 × Gen3 x16 slots (x16 link); 2 × Gen3 x8 slots (x8 link) |
| Drive compatibility | Use drives listed for HD6500 on Synology’s current compatibility list |
Physical design and power
| Form factor | 4U |
|---|---|
| Size (H × W × D) | 176 × 482 × 1020 mm |
| Weight | 37.9 kg |
| Rack support | 4-post 19-inch rack; RKS-03 included |
| System fans | 80 × 80 mm × 4 |
| Fan modes | Full-speed, cool and quiet |
| Replaceable system fans | Supported |
| Noise level | 60.8 dB(A) |
| Power recovery | Supported |
| Scheduled power on/off | Supported |
| Wake on LAN/WAN | Supported |
| Power supply | 1600 W |
| Redundant power | Supported |
| AC input | 200 V to 240 V AC |
| Power consumption | 1025.2 W access; 418 W HDD hibernation |
| Thermal output | 3495.93 BTU/hr access; 1425.38 BTU/hr HDD hibernation |
Environment, warranty and package
| Operating temperature | 0°C to 35°C |
|---|---|
| Storage temperature | -20°C to 60°C |
| Operating humidity | 8% to 80% RH |
| Storage humidity | 5% to 95% RH |
| Certifications | FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, KC, BIS, UL |
| Environment | RoHS compliant |
| Warranty | 5 years |
| Package contents | Main unit × 1; Synology SATA SSD × 2; RKS-03 sliding rail kit × 1; accessory pack × 1; AC power cord × 2; quick installation guide × 1 |
| Included system drives | Two Synology SATA SSDs in the accessory pack |
Frequently asked questions about the Synology HD6500
What is the Synology HD6500?
The Synology HD6500 is a 60-bay 4U high-density storage server designed for large-scale storage, backup, archive and surveillance data.
Which processors are in the HD6500?
It uses two Intel Xeon Silver 4210R processors, each specified with 10 cores, 20 threads and a 2.4 GHz base / 3.2 GHz turbo frequency.
How much memory does the HD6500 include?
The HD6500 includes 64 GB DDR4 ECC RDIMM and supports up to 512 GB using 32 GB × 16.
How many drives can the HD6500 support?
It provides 60 drive bays and expands to a verified maximum of 300 drives with four RX6025sas expansion units.
Which drive categories are supported by the HD6500?
Synology specifies 3.5-inch SAS HDDs or 2.5-inch SATA SSDs. Confirm exact drive models on Synology’s compatibility list.
What networking is built into the HD6500?
The HD6500 has two 10GbE RJ-45 ports, two 1GbE RJ-45 ports and one dedicated out-of-band management port.
Does the HD6500 have redundant power?
Yes. Synology specifies a redundant 1600 W power supply system.
What input power does the HD6500 require?
The verified AC input range is 200 V to 240 V AC at 50/60 Hz, single phase.
What are the HD6500 dimensions?
The chassis measures 176 × 482 × 1020 mm and weighs 37.9 kg.
What warranty applies to the HD6500?
Synology specifies a 5-year warranty beginning from the purchase date shown on the receipt.
- Install only drives and memory listed for the exact HD6500 on Synology’s current compatibility list.
- Optional R5 trays are required for 2.5-inch SATA SSD installation in the main drive bays.
- RX6025sas expansion units and compatible add-in cards are sold separately.
- The system requires 200–240 V AC and should be planned with suitable rack depth, power and cooling.
