| Storage | 
|---|
| Total installed storage capacity | 144 TB | 
| Online RAID migration | Yes | 
| Online RAID expansion | Yes | 
| Storage drives installed | Yes | 
| Installed storage drive type | HDD | 
| Number of storage drives installed | 12 | 
| Supported storage drive types | HDD & SSD | 
| Number of storage drives supported | 12 | 
| Storage drive interface | Serial ATA II, Serial ATA III | 
| Storage drive capacity | 12 TB | 
| Hot-swap drive bays | Yes | 
| RAID support | Yes | 
| Supported file systems | Fat, HFS+, NTFS, ext3, ext4 | 
| RAID levels | 0, 1, 5, 6, 10, JBOD | 
| Supported storage drive interfaces | Serial ATA II, Serial ATA III | 
| Storage drive sizes supported | 2.5,3.5" | 
| Processor | 
|---|
| Processor manufacturer | Intel | 
| Processor threads | 8 | 
| Processor cache | 6 MB | 
| Processor boost frequency | 2.7 GHz | 
| CPU configuration (max) | 1 | 
| Conflict-Free processor | Yes | 
| Processor frequency | 2.4 GHz | 
| Processor family | Intel® Xeon® D | 
| Processor model | D-1521 | 
| Processor cores | 4 | 
| Memory | 
|---|
| Internal memory type | DDR4 | 
| Internal memory | 8 GB | 
| Memory clock speed | 2133 MHz | 
| Maximum RAM supported | 64 GB | 
| Memory slots | 4 | 
| Memory form factor | UDIMM | 
| Network | 
|---|
| Link aggregation | Yes | 
| Ethernet LAN | Yes | 
| Ethernet LAN data rates | 10,100,1000 Mbit/s | 
| Wake-on-LAN ready | Yes | 
| Supported network protocols | CIFS, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN) | 
| iSCSI support | Yes | 
| Ports & interfaces | 
|---|
| USB port | Yes | 
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 | 
| PCI Express x8 (Gen 3.x) slots | 2 | 
| Ethernet LAN (RJ-45) ports | 4 | 
| Hard drive | 
|---|
| RAID support | Yes | 
| Supported file systems | Fat, HFS+, NTFS, ext3, ext4 | 
| RAID levels | 0, 1, 5, 6, 10, JBOD | 
| Design | 
|---|
| Cooling type | Active | 
| Fan diameter | 8 cm | 
| Product colour | Black | 
| Number of fans | 4 fan(s) | 
| LED indicators | Yes | 
| Chassis type | Rack (2U) | 
| Technical details | 
|---|
| Type | NAS | 
| Device class | Large Enterprise Business | 
| Backup function | Yes | 
| Backup features | Cloud, iSCSI LUN | 
| Product colour | Black | 
| Number of users | 16000 user(s) | 
| Noise level | 50.2 dB | 
| Multilingual support | Yes | 
| LED indicators | Yes | 
| Chassis type | Rack (2U) | 
| Number of fans | 4 fan(s) | 
| Sustainability compliance | Yes | 
| Harmonized System (HS) code | 84714100 | 
| Compliance certificates | RoHS | 
| Performance | 
|---|
| Built-in UPnP AV media server | Yes | 
| Built-in FTP server | Yes | 
| System log | Yes | 
| Share folder | CIFS, AFP, FTP | 
| S.M.A.R.T. support | Yes | 
| Hot spare | Yes | 
| Type | NAS | 
| Device class | Large Enterprise Business | 
| Backup function | Yes | 
| Backup features | Cloud, iSCSI LUN | 
| On/off switch | Yes | 
| Windows operating systems supported | Windows 10, Windows 7 | 
| Server operating systems supported | Windows Server 2012, Windows Server 2012 R2 | 
| Mac operating systems supported | Yes | 
| Web-based management | Yes | 
| Security algorithms | HTTPS, SSH, SSL/TLS | 
| Reset button | Yes | 
| Operating system installed | DiskStation Manager | 
| Number of users | 16000 user(s) | 
| Noise level | 50.2 dB | 
| Multilingual support | Yes | 
| Access Control List (ACL) | Yes | 
| Cooling | 
|---|
| Cooling type | Active | 
| Fan diameter | 8 cm | 
| Number of fans | 4 fan(s) | 
| Security | 
|---|
| Security algorithms | HTTPS, SSH, SSL/TLS | 
| Access Control List (ACL) | Yes | 
| Software | 
|---|
| Windows operating systems supported | Windows 10, Windows 7 | 
| Server operating systems supported | Windows Server 2012, Windows Server 2012 R2 | 
| Mac operating systems supported | Yes | 
| Operating system installed | DiskStation Manager |