Ever tried to squeeze a high-capacity storage server into a shallow rack, only to hit space limits and performance bottlenecks? With Synology you can finally fit powerful storage into a 30 cm depth without sacrificing speed. This 8-bay rackmount NAS handles heavy workloads while staying compact, so your data stays accessible and your rack stays tidy.
Synology RS1221+ 8-Bay Rackmount NAS, Ryzen V1500B, 4GB DDR4, High-Performance
This 2U rack-mount server is built for small-to-medium businesses that need reliable, high-speed storage. It supports eight hot-swap drives, ECC memory, and optional SSD cache, making it ideal for file sharing, virtualization, and backup tasks.
Benefits
- Reduces downtime with built-in redundant power.
- Improves workflow by delivering up to 2,315 MB/s read speed.
- Integrated with Synology High Availability for instant failover.
- Protects data with ECC memory and Btrfs snapshots.
- Scales easily with SSD cache and 10 GbE upgrade options.
- Keeps noise low at 25 dB, suitable for office environments.
Features
- AMD Ryzen V1500B quad-core 2.2 GHz CPU
- 4 GB DDR4 ECC memory, expandable to 32 GB
- Eight hot-swap 2.5/3.5 in drive bays
- Up to 2,315 MB/s sequential read, 1,147 MB/s write
- Four 1 GbE ports with link aggregation
- Two 8 cm active cooling fans
- PCIe x8 slot for SSD cache or 10 GbE card
- Redundant 250 W power supply option
Specifications
| Storage |
| Supported file systems |
BTRFS, Fat, HFS+, NTFS, exFAT, ext3, ext4 |
| Hot-swap drive bays |
Yes |
| Online RAID expansion |
Yes |
| Online RAID migration |
Yes |
| RAID levels |
0, 1, 5, 6, 10, JBOD |
| RAID support |
Yes |
| Storage drive sizes supported |
2.5,3.5" |
| Supported storage drive interfaces |
Serial ATA II, Serial ATA III |
| Storage drive capacity |
0 GB |
| Supported storage drive types |
HDD & SSD |
| Installed storage drive type |
No |
| Number of storage drives supported |
8 |
| Number of storage drives installed |
0 |
| Total installed storage capacity |
0 TB |
| Storage drives installed |
No |
| Processor |
| On-board graphics card model |
Not available |
| Processor cores |
4 |
| Processor frequency |
2.2 GHz |
| Processor model |
V1500B |
| Processor generation |
AMD Ryzen Embedded V1000 Series |
| Processor family |
Ryzen Embedded |
| Processor manufacturer |
AMD |
| Memory |
| ECC |
Yes |
| Memory form factor |
SO-DIMM |
| Memory slots |
2 |
| Maximum RAM supported |
32 GB |
| Internal memory type |
DDR4 |
| Internal memory |
4 GB |
| Network |
| Link aggregation |
Yes |
| Load balancing system |
Yes |
| Supported network protocols |
SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN |
| Wake-on-LAN ready |
Yes |
| iSCSI support |
Yes |
| Ethernet LAN data rates |
1000 Mbit/s |
| Ethernet LAN |
Yes |
| Ports & interfaces |
| PCI Express x8 (Gen 3.x) slots |
1 |
| eSATA ports quantity |
1 |
| Fiber ports quantity |
0 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
2 |
| USB 2.0 ports quantity |
0 |
| USB port |
Yes |
| Ethernet LAN (RJ-45) ports |
4 |
| Design |
| LED indicators |
HDD, Power, Status |
| Drive bay locking |
Yes |
| Fan diameter |
8 cm |
| Number of fans |
2 fan(s) |
| Product colour |
Black |
| Cooling type |
Active |
| Chassis type |
Rack (2U) |
| Performance |
| Access Control List (ACL) |
Yes |
| Browser supported |
Safari, Chrome, Edge, Internet Explorer, Firefox |
| Built-in FTP server |
Yes |
| Hot spare |
Yes |
| On/off switch |
Yes |
| Reset button |
Yes |
| Security algorithms |
HTTPS, SSH, SSL/TLS |
| Share folder |
AFP, CIFS/SMB, FTP, WebDAV |
| System log |
Yes |
| Management protocols |
SNMP |
| Web-based management |
Yes |
| Snapshot |
Yes |
| Noise level |
25.2 dB |
| Multilingual support |
Yes |
| Backup features |
Cloud, iSCSI LUN |
| Backup function |
Yes |
| Device class |
Small & Medium Business |
| Type |
NAS |
| Software |
| Mac operating systems supported |
Yes |
| Windows operating systems supported |
Yes |
| Operating system installed |
DiskStation Manager |
| Power |
| AC input frequency |
50 - 60 Hz |
| AC input voltage |
100 - 240 V |
| Power consumption (HDD standby) |
22.64 W |
| Power consumption (typical) |
49.89 W |
| Power supply unit (PSU) capacity |
250 W |
| Power supply location |
Built-in |
| Weight & dimensions |
| Weight |
6.9 kg |
| Height |
88 mm |
| Depth |
306.6 mm |
| Width |
482 mm |
| Packaging content |
| Power cables quantity |
2 |
| Cables included |
AC |
| Sustainability |
| Sustainability compliance |
Yes |
| Operational conditions |
| Operating altitude |
0 - 5000 m |
| Storage temperature (T-T) |
-20 - 60 °C |
| Operating relative humidity (H-H) |
5 - 95% |
| Operating temperature (T-T) |
0 - 35 °C |
| Other features |
| Compliance certificates |
CE, RoHS |
