CPU | ||
---|---|---|
CPU Model | AMD Ryzen V1500B | AMD Ryzen R1600 |
CPU Quantity | 1 | 1 |
CPU Core | 4 | 2 |
CPU Architecture | 64-bit | 64-bit |
CPU Frequency | 2.2 GHz | 2.6 (base) / 3.1 (turbo) GHz |
Hardware Encryption Engine | ||
Memory | ||
System Memory | 4 GB DDR4 ECC SODIMM | 8 GB DDR4 ECC SODIMM |
Memory Module Pre-installed | 4 GB (4 GB x 1) | 8 GB (8 GB x 1) |
Total Memory Slots | 2 | 2 |
Maximum Memory Capacity | 32 GB (16 GB x 2) | 32 GB (16 GB x 2) |
Notes |
|
|
Storage | ||
Drive Bays | 6 | 5 |
Maximum Drive Bays with Expansion Unit | 16 (DX517 x 2) | 15 (DX517 x 2) |
M.2 Drive Slots | 2 (NVMe) | 2 (NVMe) |
Compatible Drive Type* (See all supported drives) |
|
|
Hot Swappable Drive* | ||
Notes |
|
|
External Ports | ||
RJ-45 1GbE LAN Port | 4 | 4 |
USB 3.2 Gen 1 Port* | 3 | 2 |
Expansion Port | 2 | 2 |
Expansion Port Type | eSATA | eSATA |
Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. |
|
PCIe | ||
PCIe Expansion | 1 x Gen3 x8 slot (x4 link) | 1 x Gen3 x2 network upgrade slot |
Appearance | ||
Size (Height x Width x Depth) | 166 mm x 282 mm x 243 mm | 166 mm x 230 mm x 223 mm |
Weight | 5.1 kg | 2.7 kg |
Others | ||
System Fan | 92 mm x 92 mm x 2 pcs | 92 mm x 92 mm x 2 pcs |
Fan Speed Mode |
|
|
Easy Replacement System Fan | ||
Brightness Adjustable Front LED Indicators | ||
Power Recovery | ||
Noise Level* | 25.2 dB(A) | 22.90 dB(A) |
Scheduled Power On / Off | ||
Wake on LAN / WAN | ||
Power Supply Unit / Adapter | 250 watts | 120 watts |
AC Input Power Voltage | 100V to 240V AC | 100V to 240V AC |
Power Frequency | 50/60 Hz, Single Phase | 50/60 Hz, Single Phase |
Power Consumption | 51.22 watts (Access) 25.27 watts (HDD Hibernation) |
52.06 watts (Access) 16.71 watts (HDD Hibernation) |
British Thermal Unit | 174.77 BTU/hr (Access) 86.22 BTU/hr (HDD Hibernation) |
177.64 BTU/hr (Access) 57.02 BTU/hr (HDD Hibernation) |
Notes |
|
|
Temperature | ||
Operating Temperature | 0°C to 40°C (32°F to 104°F) | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -20°C to 60°C (-5°F to 140°F) | -20°C to 60°C (-5°F to 140°F) |
Relative Humidity | 5% to 95% RH | 5% to 95% RH |
Certification |
|
|
Warranty | 3-year hardware warranty, extendable to 5 years with EW201 | 3-year hardware warranty, extendable to 5 years with EW201 |
Notes |
|
|
Environment | RoHS Compliant | RoHS Compliant |
Packaging Content |
|
|
Optional Accessories |
|
|
Notes | All memory modules will operate at the maximum frequency specified by the CPU manufacturer. |
Storage Management | ||
---|---|---|
Maximum Single Volume Size | 108 TB | 108 TB |
Maximum Internal Volume Number | 64 | 64 |
M.2 SSD Storage Pool Support* | ||
SSD Read/Write Cache (Determining cache size) | ||
SSD TRIM | ||
Supported RAID Type |
|
|
RAID Migration |
|
|
Volume Expansion with Larger HDDs |
|
|
Volume Expansion by Adding a HDD |
|
|
Global Hot Spare Supported RAID Type |
|
|
Notes |
|
|
File System | ||
Internal Drives |
|
|
External Drives |
|
|
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. | |
File Services | ||
File Protocol |
|
|
Maximum Concurrent SMB/AFP/FTP Connections | 1,000 | 2,000 |
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) | 2,000 | 2,000 |
Windows Access Control List (ACL) Integration | ||
NFS Kerberos Authentication | ||
Notes |
|
|
Account & Shared Folder | ||
Maximum Local User Accounts | 2,048 | 2,048 |
Maximum Local Groups | 256 | 256 |
Maximum Shared Folder | 512 | 512 |
Maximum Shared Folder Sync Tasks | 16 | 32 |
Hybrid Share | ||
Hybrid Share Folder Number | 10 | 10 |
Hyper Backup | ||
Data & Folder Backup | ||
Entire System Backup | ||
Notes | Full-system backup requires DSM 7.2 or later. | Full-system backup requires DSM 7.2 or later. |
High Availability | ||
Synology High Availability | ||
Log Center | ||
Syslog Events per Second | 1,000 | 800 |
Virtualization | ||
VMware ESXi 6.5 and VAAI | ||
Windows Server 2016 | ||
Windows Server 2019 | ||
Windows Server 2022 | ||
Citrix Ready | ||
OpenStack | ||
General Specifications | ||
Supported Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
Supported Browsers |
|
|
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 | 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. | For an updated list of supported browser versions, check the DSM Technical Specifications. |
Central Management System | ||
---|---|---|
Synology Chat | ||
Suggested Users | 150 | 100 |
Notes | Models with expandable memory are tested with their maximum supported memory. |
|
Download Station | ||
Maximum Concurrent Download Tasks | 80 | 80 |
SAN Manager | ||
Maximum iSCSI Target Number | 128 | 128 |
Maximum LUN | 256 | 256 |
LUN Clone/Snapshot, Windows ODX | ||
Notes | iSCSI Manager has been renamed to SAN Manager in DSM 7.0. | |
Synology MailPlus / MailPlus Server | ||
Free Email Accounts | 5 (Additional accounts require purchase of licenses) | 5 (Additional accounts require purchase of licenses) |
Suggested Users | 750 | 500 |
Maximum Server Performance | 1,484,000 emails per day, approx. 45GB | 1,224,000 emails per day, approx. 37GB |
Notes |
|
|
Media Server | ||
DLNA Compliance | ||
Synology Photos | ||
Facial Recognition | ||
Object Recognition | ||
Snapshot Replication | ||
Maximum Snapshots per Shared Folder | 1,024 | 1,024 |
Maximum of System Snapshots | 65,536 | 65,536 |
Surveillance Station | ||
Default Licenses | 2 (Additional cameras require purchase of licenses) | 2 (Additional cameras require purchase of licenses) |
Suggested Maximum IP Cameras and Total FPS (H.264) |
|
|
Suggested Maximum IP Cameras and Total FPS (H.265) |
|
|
Notes |
|
|
Synology Drive | ||
Recommended Number of Concurrent Sync Clients | 550 (the number of connections that can be maintained when the recommended number of hosted files was reached) | 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
Recommended Number of Hosted Files | 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | 5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) |
Notes |
|
|
Synology Office | ||
Suggested Users | 4,500 | 3,000 |
Notes |
|
|
Virtual Machine Manager | ||
Recommended Virtual Machine Instances | 8 (Learn more) | 4 (Learn more) |
Recommended Virtual DSM Number (Licenses required) | 8 (including 1 Free License) | 4 (including 1 Free License) |
Notes | The specifications vary depending on system configuration and memory size. | The specifications vary depending on system configuration and memory size. |
VPN Server | ||
Maximum Connections | 40 | 40 |
DS1621+ | AMD Ryzen V1500B |
---|---|
DS1522+ | AMD Ryzen R1600 |
DS1621+ | 1 |
---|---|
DS1522+ | 1 |
DS1621+ | 4 |
---|---|
DS1522+ | 2 |
DS1621+ | 64-bit |
---|---|
DS1522+ | 64-bit |
DS1621+ | 2.2 GHz |
---|---|
DS1522+ | 2.6 (base) / 3.1 (turbo) GHz |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 4 GB DDR4 ECC SODIMM |
---|---|
DS1522+ | 8 GB DDR4 ECC SODIMM |
DS1621+ | 4 GB (4 GB x 1) |
---|---|
DS1522+ | 8 GB (8 GB x 1) |
DS1621+ | 2 |
---|---|
DS1522+ | 2 |
DS1621+ | 32 GB (16 GB x 2) |
---|---|
DS1522+ | 32 GB (16 GB x 2) |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 6 |
---|---|
DS1522+ | 5 |
DS1621+ | 16 (DX517 x 2) |
---|---|
DS1522+ | 15 (DX517 x 2) |
DS1621+ | 2 (NVMe) |
---|---|
DS1522+ | 2 (NVMe) |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 4 |
---|---|
DS1522+ | 4 |
DS1621+ | 3 |
---|---|
DS1522+ | 2 |
DS1621+ | 2 |
---|---|
DS1522+ | 2 |
DS1621+ | eSATA |
---|---|
DS1522+ | eSATA |
DS1621+ | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. |
---|---|
DS1522+ |
|
DS1621+ | 1 x Gen3 x8 slot (x4 link) |
---|---|
DS1522+ | 1 x Gen3 x2 network upgrade slot |
DS1621+ | 166 mm x 282 mm x 243 mm |
---|---|
DS1522+ | 166 mm x 230 mm x 223 mm |
DS1621+ | 5.1 kg |
---|---|
DS1522+ | 2.7 kg |
DS1621+ | 92 mm x 92 mm x 2 pcs |
---|---|
DS1522+ | 92 mm x 92 mm x 2 pcs |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 25.2 dB(A) |
---|---|
DS1522+ | 22.90 dB(A) |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 250 watts |
---|---|
DS1522+ | 120 watts |
DS1621+ | 100V to 240V AC |
---|---|
DS1522+ | 100V to 240V AC |
DS1621+ | 50/60 Hz, Single Phase |
---|---|
DS1522+ | 50/60 Hz, Single Phase |
DS1621+ | 51.22 watts (Access) 25.27 watts (HDD Hibernation) |
---|---|
DS1522+ | 52.06 watts (Access) 16.71 watts (HDD Hibernation) |
DS1621+ | 174.77 BTU/hr (Access) 86.22 BTU/hr (HDD Hibernation) |
---|---|
DS1522+ | 177.64 BTU/hr (Access) 57.02 BTU/hr (HDD Hibernation) |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 0°C to 40°C (32°F to 104°F) |
---|---|
DS1522+ | 0°C to 40°C (32°F to 104°F) |
DS1621+ | -20°C to 60°C (-5°F to 140°F) |
---|---|
DS1522+ | -20°C to 60°C (-5°F to 140°F) |
DS1621+ | 5% to 95% RH |
---|---|
DS1522+ | 5% to 95% RH |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 3-year hardware warranty, extendable to 5 years with EW201 |
---|---|
DS1522+ | 3-year hardware warranty, extendable to 5 years with EW201 |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | RoHS Compliant |
---|---|
DS1522+ | RoHS Compliant |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | All memory modules will operate at the maximum frequency specified by the CPU manufacturer. |
---|---|
DS1522+ |
DS1621+ | 108 TB |
---|---|
DS1522+ | 108 TB |
DS1621+ | 64 |
---|---|
DS1522+ | 64 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 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. |
---|---|
DS1522+ |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 1,000 |
---|---|
DS1522+ | 2,000 |
DS1621+ | 2,000 |
---|---|
DS1522+ | 2,000 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 2,048 |
---|---|
DS1522+ | 2,048 |
DS1621+ | 256 |
---|---|
DS1522+ | 256 |
DS1621+ | 512 |
---|---|
DS1522+ | 512 |
DS1621+ | 16 |
---|---|
DS1522+ | 32 |
DS1621+ | 10 |
---|---|
DS1522+ | 10 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | Full-system backup requires DSM 7.2 or later. |
---|---|
DS1522+ | Full-system backup requires DSM 7.2 or later. |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 1,000 |
---|---|
DS1522+ | 800 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
---|---|
DS1522+ | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | 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 |
---|---|
DS1522+ | 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 |
DS1621+ | For an updated list of supported browser versions, check the DSM Technical Specifications. |
---|---|
DS1522+ | For an updated list of supported browser versions, check the DSM Technical Specifications. |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 150 |
---|---|
DS1522+ | 100 |
DS1621+ | Models with expandable memory are tested with their maximum supported memory. |
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 80 |
---|---|
DS1522+ | 80 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 128 |
---|---|
DS1522+ | 128 |
DS1621+ | 256 |
---|---|
DS1522+ | 256 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | iSCSI Manager has been renamed to SAN Manager in DSM 7.0. |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 5 (Additional accounts require purchase of licenses) |
---|---|
DS1522+ | 5 (Additional accounts require purchase of licenses) |
DS1621+ | 750 |
---|---|
DS1522+ | 500 |
DS1621+ | 1,484,000 emails per day, approx. 45GB |
---|---|
DS1522+ | 1,224,000 emails per day, approx. 37GB |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 1,024 |
---|---|
DS1522+ | 1,024 |
DS1621+ | 65,536 |
---|---|
DS1522+ | 65,536 |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 2 (Additional cameras require purchase of licenses) |
---|---|
DS1522+ | 2 (Additional cameras require purchase of licenses) |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 550 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
---|---|
DS1522+ | 350 (the number of connections that can be maintained when the recommended number of hosted files was reached) |
DS1621+ | 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) |
---|---|
DS1522+ | 5,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 4,500 |
---|---|
DS1522+ | 3,000 |
DS1621+ |
|
---|---|
DS1522+ |
|
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 8 (Learn more) |
---|---|
DS1522+ | 4 (Learn more) |
DS1621+ | 8 (including 1 Free License) |
---|---|
DS1522+ | 4 (including 1 Free License) |
DS1621+ | The specifications vary depending on system configuration and memory size. |
---|---|
DS1522+ | The specifications vary depending on system configuration and memory size. |
DS1621+ | |
---|---|
DS1522+ |
DS1621+ | 40 |
---|---|
DS1522+ | 40 |