SYNOLOGY DiskStation DS925+ 4-BAY Network Attached Storage
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SPECIFICATION
Hardware Specifications
|
CPU Model |
AMD Ryzen V1500B |
|
CPU Quantity |
1 |
|
CPU Core |
4 |
|
CPU Architecture |
64-bit |
|
CPU Frequency |
2.2 GHz |
|
Hardware Encryption Engine |
Yes |
|
System Memory |
4 GB DDR4 ECC SODIMM |
|
Memory Module Pre-installed |
4 GB (1 x 4 GB) |
|
Total Memory Slots |
2 |
|
Max Memory Capacity |
32 GB (2 x 16 GB) |
|
Memory Notes |
Use only Synology memory modules. Modules must be identical for multi-module configs. |
|
Drive Bays |
4 |
|
Max Drive Bays (with Expansion) |
9 (via DX525 x1) |
|
M.2 Drive Slots |
2 (NVMe) |
|
Supported Drive Types |
3.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD |
|
Hot Swappable Drives |
Yes (except M.2 SSD slots) |
|
RJ-45 2.5GbE LAN Ports |
2 |
|
USB 3.2 Gen 1 Ports |
2 |
|
Expansion Port |
1 x USB Type-C |
|
Size (H x W x D) |
166 mm x 199 mm x 223 mm |
|
Weight |
2.26 kg |
|
System Fan |
2 x 92 mm |
|
Fan Modes |
Full-Speed, Cool, Quiet |
|
LED Brightness Control |
Yes |
|
Power Recovery |
Supported |
|
Noise Level |
20.5 dB(A) |
|
Scheduled Power On/Off |
Supported |
|
Wake on LAN/WAN |
Supported |
|
Power Adapter |
100W (120W peak) |
|
AC Input Voltage |
100V–240V AC, 50/60 Hz |
|
Power Consumption |
37.91W (Access), 12.33W (HDD Hibernation) |
|
BTU Rating |
129.27 BTU/hr (Access), 42.05 BTU/hr (HDD Hibernation) |
|
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 |
|
Certifications |
FCC, CE, BSMI, VCCI, RCM, UKCA, EAC, CCC, KC, BIS |
|
Warranty |
3 years (extendable to 5 years with EW201) |
|
Environmental Compliance |
RoHS Compliant |
|
Packaging Contents |
Main Unit x1, Accessory Pack x1, AC Adapter x1, Power Cord x1, RJ-45 Cable x2 |
|
Optional Accessories |
DDR4 ECC SODIMM (D4ES04-4G, D4ES03-8G/16G), DX525 Expansion, HAT5300/HAT3300 HDDs, SAT5200 SSD, SNV3400/SNV5400 NVMe SSDs |
Software Specifications
|
Max Single Volume Size |
200 TB (32 GB memory required); 108 TB otherwise |
|
Max Internal Volume Number |
32 |
|
M.2 SSD Storage Pool Support |
Yes* |
|
SSD Read/Write Cache |
Yes (Cache size based on SSD capacity) |
|
SSD TRIM |
Supported |
|
Supported RAID Types |
Synology Hybrid RAID, Basic, JBOD, RAID 0/1/5/6/10 |
|
RAID Migration |
Basic → RAID 1/5, RAID 1 → RAID 5, RAID 5 → RAID 6 |
|
Volume Expansion (Larger HDDs) |
SHR, RAID 1/5/6/10 |
|
Volume Expansion (Add HDD) |
SHR, JBOD, RAID 5/6 (with expansion) |
|
Global Hot Spare Support |
SHR, RAID 1/5/6/10 (with expansion unit) |
|
File System (Internal) |
Btrfs, ext4 |
|
File System (External) |
Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT |
|
File Protocols |
SMB, AFP, NFS, FTP, WebDAV, Rsync |
|
Max SMB Connections (FSCT) |
40 |
|
Windows ACL Integration |
Yes |
|
NFS Kerberos Authentication |
Yes |
|
Max Local User Accounts |
512 |
|
Max Local Groups |
128 |
|
Max Shared Folders |
128 |
|
Max Shared Folder Sync Tasks |
4 |
|
Hybrid Share Folders |
10 |
|
Hyper Backup |
Full system and folder backup supported |
|
High Availability |
Supported |
|
Syslog Events per Second |
800 |
|
Virtualization Support |
VMware vSphere, Hyper-V, Citrix XenServer, OpenStack Cinder |
|
Supported Protocols |
SMB1–3, NFSv3–v4.1, iSCSI, HTTP(S), FTP, SNMP, LDAP, CalDAV |
|
Supported Browsers |
Chrome, Firefox, Edge, Safari |
|
Languages Supported |
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