Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals
Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals
Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals
Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals
Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals
Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals
Synology HD6500 High Density 60-Bay Rackmount NAS - ACE Peripherals

Synology HD6500 High Density 60-Bay Rackmount NAS

60-bay RackStation (up to 300-bay) 2.5'' or 3.5" SAS storage, 10 Core 2.4 GHz (turbo to 3.2 GHz), 64GB RAM (up to 512GB), 2x10GbE Base T,...

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Vendor: Synology
SKU: HD6500
Barcode: 846504003648
Availability : In Stock Pre order Out of stock

Frequently Bought Together

Total price:$28,237.00 $27,390.00

60-bay RackStation (up to 300-bay) 2.5'' or 3.5" SAS storage, 10 Core 2.4 GHz (turbo to 3.2 GHz), 64GB RAM (up to 512GB), 2x10GbE Base T, Redundant power. Scalable high-density storage server for multi-petabyte applications


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


64 GB DDR4 ECC, expandable to 512 GB


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. 

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.

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.

Hardware Specifications
CPU Model Intel Xeon Silver 4210R
CPU Quantity 2
CPU Architecture 64-bit
CPU Frequency 10-core 2.4 (base) / 3.2 (turbo) GHz
Hardware Encryption Engine (AES-NI)
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.
Drive Bays 60
Maximum Drive Bays with Expansion Unit 300 (RX6022sas x 4)
SAS multipathing
Compatible Drive Type* (See all supported drives) 3.5" SAS HDD
Hot Swappable Drive*
External Ports
RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support)
RJ-45 1GbE LAN Port*  
RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support)
Out-of-Band Management LAN Port 1
Max. number of LAN ports 15
USB 3.2 Gen 1 Port* 2
Expansion Port 2
Notes The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
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 Expansion 2 x Gen3 x16 slot (x16 link)
2 x Gen3 x8 slots (x8 link)
File System
Internal Drives Btrfs
External Drives Btrfs
Notes exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
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)
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 W
Redundant Power Supply
AC Input Power Voltage 200V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 1025.2 W (Access)
418 W (HDD Hibernation)
British Thermal Unit 3495.93 BTU/hr (Access)
1425.38 BTU/hr (HDD Hibernation)
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
Warranty 5 Years
Environment RoHS Compliant
Packaging Content Main Unit X 1
Synology 480GB 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 DDR4 ECC RDIMM: D4ER01-32G
Expansion Units: RX6022sas
3.5" SAS HDD: HAS5300
2.5" SATA SSD: SAT5210
25GbE Network Interface Card: E25G21-F2
10GbE Network Interface Card: E10G21-F2/E10G18-T2
Surveillance Device License Pack
DSM Specifications
Storage Management
Maximum Single Volume Size* 1 PB (for RAID 6 groups only)
200 TB
Maximum Internal Volume Number 256
SSD Read / Write Cache (White Paper)
RAID Group
Supported RAID Type Basic
RAID Migration Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs RAID 1
Volume Expansion by Adding a HDD JBOD
Global Hot Spare Supported RAID Type RAID 1
Notes SSD cache support requires DSM 7.1.1-42962 Update 4 or later versions.
When Peta Volume is enabled, validated services and packages are required. Please refer to this article for more information on limitations.
File Services
File Protocol SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections 10,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) 10,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
Account & Shared Folder
Maximum Local User Accounts 16,000
Maximum Local Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 32
Hybrid Share
Maximum Hybrid Share Folders 30
Hyper Backup
Folder and Package Backup
Entire System Backup
Notes Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
Log Center
Syslog Events per Second 6,000
VMware vSphere with VAAI
Windows Server 2016
Windows Server 2019
Windows Server 2022
Citrix Ready
General Specifications
Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers Google Chrome
Microsoft Edge
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
Add-on Packages view the complete package list
Antivirus by McAfee (Trial)
Central Management System
Synology Chat
Maximum Users  
Maximum Number of Concurrent Users 500
Document Viewer  
SAN Manager  
Maximum iSCSI Target Number 256
Maximum LUN 512
LUN Clone/Snapshot, Windows ODX  
Synology MailPlus / MailPlus Server  
Free Email Accounts 5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users 800
Maximum Server Performance 2,895,678 emails per day, approx. 85 GB
Snapshot Replication
Maximum Snapshots per Shared Folder 1,024
Maximum of System Snapshots 65,536
Surveillance Station
Maximum IP cam (Licenses required) 150 (including 2 Free License) (see all supported IP cameras)
Total FPS (H.264) 4500 FPS @ 720p (1280x720)
2800 FPS @ 1080p (1920x1080)
1280 FPS @ 3M (2048x1536)
850 FPS @ 5M (2591x1944)
600 FPS @ 4K (3840x2160)
Total FPS (H.265) 4500 FPS @ 720p (1280x720)
4500 FPS @ 1080p (1920x1080)
2700 FPS @ 3M (2048x1536)
1500 FPS @ 5M (2591x1944)
1120 FPS @ 4K (3840x2160)
Synology Drive
Recommended Number of Concurrent Sync Clients 2,000 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files 100,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Notes Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
For tested models with expandable memory, the maximum amount of RAM was installed.
Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Users 3,400
Notes Multiple files were opened for testing and each file was edited by 30 users simultaneously.
For tested models with expandable memory, the maximum amount of RAM was installed.
Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Virtual Machine Manager
Recommended Virtual Machine Instances 40 
Recommended Virtual DSM Number (Licenses required) 40 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.
VPN Server  
Maximum Connections 60