SYNOLOGY DISKSTATION DS725+ | 2-BAY NAS, AMD RYZEN R1600, 4GB – DISKLESS
FEATURES:
- Dependable Performance – Up to 276 / 224MB/s sequential read/write throughput supports stable data transfers
- Fast Networking – Built-in 2.5GbE port for fast connectivity out of the box
- Versatile Network Storage – Leverage built-in file and photo management, data protection and surveillance solutions
- Capacity Expansion – Add 5× extra drive bays for up to 140TB of storage with one DX525 expansion unit
Synology DiskStation DS725+ | 2-Bay NAS, AMD Ryzen R1600, 4GB - Diskless
Versatile 2-Bay Storage Solution with Expandable Capacity
FEATURES:
- Dependable Performance - Up to 276 / 224MB/s sequential read/write throughput supports stable data transfers
- Fast Networking - Built-in 2.5GbE port for fast connectivity out of the box
- Versatile Network Storage - Leverage built-in file and photo management, data protection and surveillance solutions
- Capacity Expansion - Add 5× extra drive bays for up to 140TB of storage with one DX525 expansion unit
SPECIFICATIONS:
| HARDWARE SPECIFICATIONS | ||
| CPU | CPU Model | AMD Ryzen R1600 |
| CPU Quantity | 1× | |
| CPU Core | 2× | |
| CPU Architecture | 64bit | |
| CPU Frequency | 2.6 (Base) / 3.1 (Turbo) GHz | |
| Hardware Encryption Engine | Yes | |
| Memory | System Memory | 4GB DDR4 ECC SODIMM |
| Memory Module Pre-installed | 4GB (1× 4GB) | |
| Total Memory Slots | 2× | |
| Maximum Memory Capacity | 32GB (2× 16GB) | |
| 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 | 2× |
| Maximum Drive Bays with Expansion Unit | 7× (1× DX525) | |
| M.2 Drive Slots | 2× (NVMe) | |
| Drive Types | 3.5" SATA HDD | |
| 2.5" SATA SSD | ||
| M.2 2280 NVMe SSD | ||
| Hot Swappable Drive | Yes | |
| Notes | The hot swappable drive feature is not supported by M.2 SSD slots. | |
| Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. | ||
| External Ports | RJ45 1GbE LAN Port | 1× |
| RJ45 2.5GbE LAN Port | 1× | |
| USB3.2 Gen1 Port | 1× | |
| Expansion Port | 1× | |
| Expansion Port Type | USB Type-C | |
| Notes | This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. | |
| Appearance | Dimensions (H × W × D) | 166 × 106 × 223mm |
| Weight | 1.51 kg | |
| Others | System Fan | 1× 92×92mm |
| Fan Speed Mode | Full-Speed Mode | |
| Cool Mode | ||
| Quiet Mode | ||
| Brightness Adjustable Front LED Indicators | Yes | |
| Power Recovery | Yes | |
| Noise Level | 17.9dB(A) | |
| Scheduled Power On / Off | Yes | |
| Wake-on-LAN / WAN | Yes | |
| Power Supply Unit / Adapter | 65W | |
| AC Input Power Voltage | 100~240VAC | |
| Power Frequency | 50/60 Hz, Single-Phase | |
| Power Consumption | 20.41W (Access) | |
| 7.87W (HDD Hibernation) | ||
| British Thermal Unit | 69.61 BTU/hr (Access) | |
| 26.84 BTU/hr (HDD Hibernation) | ||
| Notes | Noise testing was conducted with the Synology system fully installed with Synology SATA HDDs and in an idle state. Two G.R.A.S. Type 40AE microphones are placed at a 1m distance from the front and rear of the device. Background noise: 16.49~17.51dB(A); Temperature: 24.25~25.75°C; Humidity: 58.2~61.8% | |
| Temperature | Operating Temperature | 0~40°C |
| Storage Temperature | -20~60°C | |
| Operating Humidity | 8~80% RH | |
| Storage Humidity | 5~95% RH | |
| Certification | FCC | |
| CE | ||
| BSMI | ||
| VCCI | ||
| RCM | ||
| UKCA | ||
| EAC | ||
| CCC | ||
| KC | ||
| BIS | ||
| Warranty | 3-Year Hardware Warranty, Extendable to 5-Years with EW201 or Extended Warranty Plus | |
| Notes | The warranty period starts from the purchase date as stated on your purchase receipt. | |
| Extended Warranty Plus is only available in Europe and North America. EW201/EW202 is only available in Asia, Africa and Oceania. For exact availability information please visit their respective websites. | ||
| Environment | RoHS Compliant | |
| Packaging Content | 1× Main Unit | |
| 1× Accessory Pack | ||
| 1× AC Power Adapter | ||
| 1× AC Power Cord | ||
| 2× RJ45 LAN Cable | ||
| Optional Accessories |
DDR4 ECC SODIMM: D4ES04-4G/D4ES03-8G/D4ES03-16G | |
| Expansion Units: DX525 | ||
| Enterprise Series 3.5" SATA HDD: HAT5300 Series | ||
| Plus Series 3.5" SATA HDD: HAT3300 Series | ||
| Enterprise Series 2.5" SATA SSD: SAT5200 Series | ||
| Enterprise Series M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series | ||
| Notes | 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. | |
| DSM SPECIFICATIONS | ||
| Storage Management |
Maximum Single Volume Size | 200TB (32GB Memory Required) |
| 108TB | ||
| Maximum Internal Volume Number | 32× | |
| M.2 SSD Storage Pool Support | Yes | |
| SSD Read/Write Cache | Yes | |
| SSD TRIM | Yes | |
| Supported RAID Type | Synology Hybrid RAID | |
| Basic | ||
| JBOD | ||
| RAID 0 | ||
| RAID 1 | ||
| RAID 5 (with Expansion Unit) | ||
| RAID 6 (with Expansion Unit) | ||
| RAID 10 (with Expansion Unit) | ||
| RAID Migration | Basic to RAID 1 | |
| Basic to RAID 5 (with Expansion Unit) | ||
| RAID 1 to RAID 5 (with Expansion Unit) | ||
| RAID 5 to RAID 6 (with Expansion Unit) | ||
| Volume Expansion with Larger HDDs |
Synology Hybrid RAID | |
| RAID 1 | ||
| RAID 5 (with Expansion Unit) | ||
| RAID 6 (with Expansion Unit) | ||
| RAID 10 (with Expansion Unit) | ||
| Volume Expansion by Adding a HDD |
Synology Hybrid RAID (with Expansion Unit) | |
| JBOD (with Expansion Unit) | ||
| RAID 5 (with Expansion Unit) | ||
| RAID 6 (with Expansion Unit) | ||
| Global Hot Spare Supported RAID Type | Synology Hybrid RAID (with Expansion Unit) | |
| RAID 1 (with Expansion Unit) | ||
| RAID 5 (with Expansion Unit) | ||
| RAID 6 (with Expansion Unit) | ||
| RAID 10 (with Expansion Unit) | ||
| Notes | Volumes over 108TB require 32GB of memory or more. | |
| Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available and the RAID configuration. | ||
| Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored. | ||
| Creating M.2 storage pools requires the use of Synology-verified SSDs, which are rigorously tested under extreme temperature conditions. Thermal parameters for SSDs and NAS units are fine-tuned to ensure optimal management of thermal conditions under I/O-intensive environments. | ||
| File System | Internal Drives | Btrfs |
| ext4 | ||
| External Drives | Btrfs | |
| ext4 | ||
| ext3 | ||
| FAT32 | ||
| NTFS | ||
| HFS+ | ||
| exFAT | ||
| File Services | File Protocol | SMB |
| AFP | ||
| NFS | ||
| FTP | ||
| WebDAV | ||
| Rsync | ||
| Maximum Number of SMB Connections (FSCT-Based) | 30× | |
| Windows Access Control List (ACL) Integration | Yes | |
| NFS Kerberos Authentication | Yes | |
| Notes | Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network ports | |
| Models with expandable memory are tested with the maximum supported quantity installed. | ||
| SMB performance was evaluated using Microsoft File Server Capacity Tool (FSCT) version 1.3, with the following configuration: | ||
| Test workload: HomeFolder scenario provided by the FSCT tool | ||
| Test duration: 600 seconds | ||
| Domain controller and FSCT controller: Windows Server 2022 | ||
| FSCT clients: 8× Windows 10 machines | ||
| SMB feature: Directory leasing enabled | ||
| Account and Shared Folder | Maximum Local User Accounts | 512× |
| Maximum Local Groups | 128× | |
| Maximum Shared Folder | 128× | |
| Maximum Shared Folder Sync Tasks | 4× | |
| Hybrid Share | Maximum Hybrid Share Folders | 10× |
| Hyper Backup | Folder and Package Backup | Yes |
| Entire System Backup | Yes | |
| High Availability | Synology High Availability | Yes |
| Log Center | Syslog Events per Second | 800× |
| Virtualisation | VMware vSphere | ESXi 8.0 U2, ESXi 8.0 U1, ESXi 8.0, ESXi 7.0 U3, ESXi 7.0 U2, ESXi 7.0 U1, ESXi 7.0, ESXi 6.7 U3, ESXi 6.7 U2, ESXi 6.7 U1, ESXi 6.7, ESXi 6.5 U3, ESXi 6.5 U2, ESXi 6.5 U1, ESXi 6.5 |
| Microsoft Hyper-V | Windows Server 2022 | |
| Citrix XenServer | XenServer 8, Citrix Hypervisor 8.2 LTSR CU1 | |
| OpenStack | Cinder | |
| General Specifications |
Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberised Sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| Supported Browsers | Chrome | |
| Firefox | ||
| Edge | ||
| Safari | ||
| 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 | |
| Notes | For an updated list of supported browser versions, check the DSM Technical Specifications. | |
| ADD-ON PACKAGES | ||
| Central Management System | Yes | |
| Synology AI Console | Third-Party AI Model Integration | Yes |
| Maximum De-Identification Rate | 30 Words per Second | |
| Notes | De-identification performance measurement: Filters for Credit Card Numbers, IBAN, Individual Taxpayer Identification Number, SSN and Names applied to a 4,355-word English text. | |
| To enable de-identification, your device must have at least 8GB of memory and Container Manager installed. | ||
| Synology Chat | Maximum Number of Users | 100× |
| Notes | Measured with simulated users, each with an average record of 20,000× messages, emojis or stickers. The required server response time is below ten seconds. | |
| Models with expandable memory are tested with the maximum supported quantity installed. | ||
| Download Station | Maximum Concurrent Download Tasks | 80× |
| SAN Manager | Maximum iSCSI Target Number | 32× |
| Maximum LUN | 64× | |
| LUN Clone / Snapshot, Windows ODX | Yes | |
| Synology MailPlus / MailPlus Server | Free Email Accounts | 5× (Additional Accounts Require Purchase of Licenses) |
| Maximum Number of Users | 60× | |
| Notes | The suggested maximum number of users is based on the following workload: 20% of users with a 20,000× item mailbox randomly performing actions and receiving 240× emails per day and 80% of users receiving 20× emails per day. | |
| Models with SSD support are tested with a single SSD volume. | ||
| Models with expandable memory are tested with the maximum supported quantity installed. | ||
| Operating in high-availability mode will incur additional overhead. | ||
| Features enabled during evaluation: anti-spam, anti-virus, DNSBL, greylist, content scanning and full-text search (English). | ||
| Media Server | DLNA Compliance | Yes |
| Synology Photos | Facial Recognition | Yes |
| Object Recognition | Yes | |
| Snapshot Replication | Maximum Snapshots per Shared Folder | 256× |
| Maximum of System Snapshots | 2,048× | |
| Surveillance Station | Default Licenses | 2× (Additional Cameras Require Purchase of Licenses) |
| Maximum IP Cameras and Total fps (H.264) | 1080p: 40-Channels, 800fps | |
| 3M: 35-Channels, 350fps | ||
| 5M: 28-Channels, 280fps | ||
| 4K: 17-Channels, 170fps | ||
| Maximum IP Cameras and Total fps (H.265) | 1080p: 40-Channels, 1200fps | |
| 3M: 40-Channels, 600fps | ||
| 5M: 40-Channels, 480fps | ||
| 4K: 20-Channels, 200fps | ||
| Notes | Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features and the presence of additional workloads. | |
| Use NVR Selector to quickly find a suitable model based on your requirements. | ||
| The number of video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution. | ||
| Synology Drive | Maximum Number of Users | 50× |
| Maximum Number of Hosted Files | 500,000× (Applies to Files Indexed or Hosted by Synology Drive. For File Access Through Other Standard Protocols, Refer to the File Services Section Above) | |
| Notes | The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move and delete), and 80% of users are logged in but idle. | |
| Models with SSD support are tested with a single SSD volume. | ||
| Models with expandable memory are tested with the maximum supported quantity installed. | ||
| Exceeding the recommended numbers above will not block application operations, but may result in longer response time. | ||
| Btrfs file system and non-encrypted shared folders were used during the aforementioned testing. | ||
| Synology Office | Maximum Number of Users | 50× |
| Notes | The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals and 80% of users are logged in and viewing a file. | |
| Models with SSD support are tested with a single SSD volume. | ||
| Models with expandable memory are tested with the maximum supported quantity 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 | 4× |
| Recommended Virtual DSM Number (Licenses Required) | 4× (Including 1 Free License) | |
| Notes | The specifications vary depending on system configuration and memory size. | |
| VPN Server | Maximum Connections | 8× |
Additional information
| Weight | 2.7 kg |
|---|---|
| Dimensions | 28.4 × 27 × 12 cm |
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