Product Overview
Manufacturer product information
A compact storage hub with 100% data ownership
Technical Specifications
Structured product specifications
CPU > CPU Model Intel Celeron J4125
CPU Quantity 1
CPU Cores 4
CPU Threads 4
CPU Architecture 64-bit
CPU Frequency 2.0 (base) / 2.7 (turbo) GHz
Memory > System Memory 2 GB DDR4 non-ECC
Total Memory Slots 1
Maximum Memory Capacity 6 GB (2 GB + 4 GB)
Notes Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and 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.
Storage > Drive Bays (See all supported drives) .bx{display:inline-block;vertical-align:middle;}.it{display:flex;}.it::before{content:'• ';white-space:pre;}.it:only-child::before{display:none;}4 × 3.5" SATA HDD or 2.5" SATA SSD2 × M.2 2280 NVMe SSD
Notes #2 The hot swappable drive feature is not supported by M.2 SSD slots.Synology only guarantees full functionality, reliability, and performance for compatible drives. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.SSD cache can be enabled with select compatible SSD. See the compatibility list for model-specific support and details. SSDs are sold separately.
External Ports > RJ-45 1GbE LAN Port 1
RJ-45 2.5GbE LAN Port 1
USB 3.2 Gen 1 Port 2
Notes #3 This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes.
Appearance > Size (Height × Width × Depth) 166 mm × 199 mm × 223 mm
Weight 2.18 kg
Others > System Fan 92 mm × 92 mm × 2 pcs
Fan Speed Mode Full-Speed ModeCool ModeQuiet Mode
Noise Level 21.6 dB(A)
Power Supply Unit / Adapter 90 watts
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption 28.25 watts (Access)6.10 watts (HDD Hibernation)
British Thermal Unit 96.33 BTU/hr (Access)20.79 BTU/hr (HDD Hibernation)
Notes #4 For more information on how power consumption is measured, refer to this article.Noise testing was conducted with the Synology system fully installed with Synology SATA SSDs and in an idle state. Two G.R.A.S. type 40AE microphones were placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%.
Temperature > Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Operating Humidity 8% to 80% RH
Storage Humidity 5% to 95% RH
Certification FCCCEBSMIVCCIRCMUKCAEACCCCKCBIS
Warranty 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus
Notes #5 The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)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 Main Unit × 1Accessory Pack × 1AC Power Adapter × 1AC Power Cord × 1RJ-45 LAN Cable × 2
Optional Accessories DDR4 non-ECC SODIMM: D4NS01-4GEnterprise Series 3.5" SATA HDD: HAT5300 SeriesPlus Series 3.5" SATA HDD: HAT3300 SeriesEnterprise Series 2.5" SATA SSD: SAT5200 SeriesEnterprise Series M.2 2280 NVMe SSD: SNV3400 & SNV5400 Series
Storage Management > Maximum Single Volume Size 108 TB
Maximum Internal Volume Number 32
Supported RAID Type Synology Hybrid RAIDBasicJBODRAID 0RAID 1RAID 5RAID 6RAID 10
RAID Migration Basic to RAID 1Basic to RAID 5RAID 1 to RAID 5RAID 5 to RAID 6
Volume Expansion with Larger HDDs Synology Hybrid RAIDRAID 1RAID 5RAID 6RAID 10
Volume Expansion by Adding a HDD Synology Hybrid RAIDJBODRAID 5
Global Hot Spare Supported RAID Type Synology Hybrid RAIDRAID 1RAID 5
Notes #6 Each internal volume (may consist of multiple drives) is expandable up to 108TB.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. (Learn more)Storage efficiency helps reduce storage space consumption through deduplication and compression. For more information about this feature and its support requirements, please refer to this article.
File System > Internal Drives Btrfsext4
External Drives Btrfsext4ext3FAT32NTFSHFS+exFAT
File Services > File Protocol SMBAFPNFSFTPWebDAVRsync
Maximum Number of SMB Connections (FSCT-Based) 10
Notes #7 Connection value of this model is tested with Synology SATA HDD fully populated and all onboard network portsModels 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 & FSCT controller: Windows Server 2022 FSCT clients: 8 × Windows 10 machines SMB feature: Directory leasing enabled
Account & 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
High Availability Synology High Availability
Log Center > Syslog Events per Second 800
Virtualization > 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 2025, 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 Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers ChromeFirefoxEdgeSafari
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 #8 For an updated list of supported browser versions, check the DSM Technical Specifications.
Synology AI Console Third-Party AI Model Integration
Synology Chat > Maximum Number of Users 100
Notes #9 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 2
Maximum LUN 4
Synology MailPlus / MailPlus Server > Free Email Accounts 5 (Additional accounts require purchase of licenses)
Maximum Number of Users 20
Notes #10 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. Learn moreModels with SSD support are tested with a single SSD volume.Models with expandable memory are tested with the maximum supported quantity installed. Learn more about memory requirements.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
Synology Photos Facial Recognition
Notes #11 Object recognition requires an upgrade of memory capacity to a minimum of 4 GB.
Snapshot Replication > Maximum Snapshots per Shared Folder 128
Maximum Snapshots per LUN 32
Maximum Snapshots per System 1,024
Maximum Replication Tasks for Shared Folders 16
Maximum Replication Tasks for LUNs 8
Maximum Replication Tasks per System 16
Surveillance Station > Default Licenses 2 (Additional cameras require purchase of licenses)
Maximum IP Cameras and Total FPS (H.264) 1080p: 40 channels, 800 FPS3M: 35 channels, 350 FPS5M: 28 channels, 280 FPS4K: 17 channels, 170 FPS
Maximum IP Cameras and Total FPS (H.265) 1080p: 40 channels, 1200 FPS3M: 40 channels, 600 FPS5M: 40 channels, 480 FPS4K: 20 channels, 200 FPS
Notes #12 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.The values above are based on testing with RTSP streaming. If SRTP is enabled for all cameras, overall performance will decrease to 70% of the stated figures.
Synology Drive > Maximum Number of Users 20
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 #13 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. Learn moreModels 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 20
Notes #14 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. Learn moreModels 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 2 (Learn more)
Recommended Virtual DSM Number (Licenses required) 2 (including 1 Free License)
Notes #15 The specifications vary depending on system configuration and memory size.
VPN Server > Maximum Connections 4
