| Product Type | Network Attached Storage |
Technical details
Brand | Synology |
Collection
Collection Model | Synology DS1821+ |
Design
Chassis type | Tower |
| Product colour | Black |
| Cable lock slot type | Kensington |
| Cooling type | Active |
| Fan diameter | 12 cm |
| Cable Lock Slot | Y |
| On/off switch | Y |
| Number of fans | 2 fan(s) |
| LED indicators | Y |
Processor
Processor frequency | 2.2 GHz |
| Processor cores | 4 |
| Processor manufacturer | AMD |
| Processor Family | AMD Ryzen |
| Processor model | V1500B |
Memory
Internal memory type | DDR4 |
| Internal Memory | 4 GB |
| Maximum RAM supported | 32 GB |
| Memory slots | 2 |
Storage
Storage drives installed | N |
| Installed storage drive type | N |
| Number of storage drives supported | 8 |
| Maximum supported storage capacity | 108 TB |
| Supported storage drive interfaces | Serial ATA, Serial ATA II, Serial ATA III |
| Storage drive sizes supported | 2.5,3.5" |
| Number of M.2 (M & B) slots | 2 |
| RAID support | Y |
| RAID levels | 0,1,5,6,10,JBOD |
| Hot-swap drive bays | Y |
| Supported storage drive types | HDD & SSD |
Networking
Ethernet LAN | Y |
| Ethernet LAN data rates | 1000 Mbit/s |
| iSCSI support | Y |
| Number of users | 2048 user(s) |
| Link aggregation | Y |
| Browser supported | Google Chrome, Firefox, Microsoft Edge, Internet Explorer 10+, Safari 10+ |
Ports & interfaces
USB port | Y |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| eSATA ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 4 |
| PCI Express x8 (Gen 3.x) slots | 1 |
Software
Operating system installed | DiskStation Manager |
Power
Power supply location | Built-in |
| Power supply unit (PSU) capacity | 250 W |
| Power consumption (typical) | 59.8 W |
| Power consumption (HDD standby) | 26.18 W |
| Number of power supply units | 1 |
| AC Input Voltage | 100-240 V |
| AC input frequency | 50/60 Hz |
Microphone
Type | NAS |
System requirements
Server operating systems supported | Windows Server 2016,Windows Server 2019 |
Weight & dimensions
Weight | 6 kg |
| Width | 343 mm |
| Depth | 243 mm |
| Height | 166 mm |
Hospitality features
Wake-on-LAN ready | Y |
Protocols
Supported network protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
Performance
Supported file systems | BTRFS,FAT,HFS+,NTFS,ext3,ext4 |
| Device class | Large Enterprise Business |
| Backup function | Y |
| Backup features | Cloud, iSCSI LUN |
| Multilingual support | Y |
| Snapshot | Y |
| Hot spare | Y |
| Reset button | Y |
| Access Control List (ACL) | Y |
Management features
Web-based management | Y |
Features
Noise level | 22.2 dB |
Operational conditions
Operating temperature (T-T) | 0 - 40 C |
| Storage temperature (T-T) | -20 - 60 C |
| Operating relative humidity (H-H) | 5 - 95% |
Certificates
Certification | RoHS
FCC
CE
BSMI
EAC
CCC
KC
VCCI
RCM |
Packaging data
Cables included | AC, LAN (RJ-45) |
| MPN | DS1821+/128TB-EXOS |