8-bay 2U redundant-power rackmount NAS
Synology RackStation RS1221RP+ 8-Bay Rackmount NAS
The Synology RackStation RS1221RP+ is an eight-bay 2U business NAS with a 4-core AMD Ryzen processor, expandable ECC memory, four 1GbE ports, redundant power and scale-up support to 12 drive bays.
- Processor
- AMD Ryzen V1500B
- Memory
- 4 GB DDR4 ECC SODIMM
- Drive bays
- 8 / up to 12 (RX418 × 1)
- Networking
- 4 × 1GbE RJ-45
Deploy resilient eight-bay business storage in a compact 2U chassis
The RS1221RP+ is designed for businesses and IT teams that need centralised file storage, backup and data protection with redundant power. Its eight hot-swappable bays can expand to twelve, while the PCIe slot provides a path to compatible higher-speed networking or cache options.
Eight hot-swappable bays
Build centralised SATA storage for business files, backup and shared datasets.
Expand to 12 bays
Connect one RX418 unit when four additional drive bays are required.
Ryzen embedded processor
The AMD Ryzen V1500B provides 4 cores and 8 threads at 2.2 GHz.
ECC memory up to 32 GB
Start with 4 GB DDR4 ECC SODIMM and expand across two verified slots.
PCIe expansion
The Gen3 x8 slot with x4 link supports compatible networking or adapter-card upgrades.
Redundant power
Dual 350 W power supplies help reduce exposure to a single PSU or cord interruption.
Who is the Synology RS1221RP+ best for?
A strong choice for
- Small and medium-sized business storage
- Backup and file-sharing services
- Shorter-depth 2U rack deployments
- Teams expanding from eight to twelve bays
- Environments requiring redundant power
Consider another model if you need
- Built-in 10GbE connectivity
- More than twelve drive bays
- A shallower non-redundant-power chassis
- A desktop rather than rackmount system
Key specifications
- Model
- RS1221RP+
- Product type
- 8-bay 2U redundant-power rackmount NAS
- Processor
- AMD Ryzen V1500B, 4 cores, 8 threads
- CPU frequency
- 2.2 GHz
- System memory
- 4 GB DDR4 ECC SODIMM
- Maximum memory
- 32 GB (16 GB × 2)
- Drive bays
- 8; up to 12 (RX418 × 1)
- Drive types
- 8 × 3.5-inch SATA HDD or 2.5-inch SATA HDD/SSD
- Networking
- 4 × 1GbE RJ-45
- PCIe expansion
- 1 × Gen3 x8 slot (x4 link)
- Dimensions (H × W × D)
- 88 × 482 × 407.5 mm
- Warranty
- 3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus
Full technical specifications
Processor and memory
| Model | RS1221RP+ |
|---|---|
| CPU model | AMD Ryzen V1500B |
| CPU quantity | 1 |
| CPU cores and threads | 4 cores, 8 threads |
| CPU architecture | 64-bit |
| CPU frequency | 2.2 GHz |
| Hardware encryption engine | Supported |
| System memory | 4 GB DDR4 ECC SODIMM |
| Pre-installed memory | 4 GB (4 GB × 1) |
| Total memory slots | 2 |
| Maximum memory capacity | 32 GB (16 GB × 2) |
| Memory guidance | Use Synology memory modules and follow the exact-model manual for supported configurations |
Storage, network and expansion
| Drive bays | 8 |
|---|---|
| Maximum drive bays with expansion | 12 (RX418 × 1) |
| Compatible drive types | 8 × 3.5-inch SATA HDD or 2.5-inch SATA HDD/SSD |
| Hot-swappable front drives | Supported |
| Network ports | 4 × 1GbE RJ-45 |
| USB ports | 2 × USB 3.2 Gen 1 |
| Expansion connection | 1 × eSATA |
| PCIe expansion | 1 × Gen3 x8 slot (x4 link) |
| Drive compatibility | Use only drives listed for the exact system on Synology’s current compatibility list |
Physical design and power
| Form factor | 2U |
|---|---|
| Size (H × W × D) | 88 × 482 × 407.5 mm |
| Weight | 8.4 kg |
| Rack installation | 4-post 19-inch rack; RKS-02 rail kit sold separately |
| System fans | 80 × 80 mm × 2 |
| Fan modes | Full-speed, cool and quiet |
| Noise level | 53.5 dB(A) |
| Power recovery | Supported |
| Power supply unit | 350 W |
| Redundant power supply | Yes |
| AC input | 100 V to 240 V AC |
| Power frequency | 50/60 Hz, single phase |
| Power consumption | 61.94 W (access); 29.98 W (HDD hibernation) |
| British Thermal Unit | 211.35 BTU/hr (access); 102.30 BTU/hr (HDD hibernation) |
Environment, warranty and package
| Operating temperature | 0°C to 35°C |
|---|---|
| Storage temperature | -20°C to 60°C |
| Operating humidity | 8% to 80% RH |
| Storage humidity | 5% to 95% RH |
| Certifications | FCC, CE, BSMI, VCCI, RCM, EAC, CCC, KC, BIS, UL |
| Environment | RoHS compliant |
| Warranty | 3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus |
| Package contents | Main unit × 1; accessory pack × 1; AC power cord × 2; quick installation guide × 1 |
Frequently asked questions about the Synology RS1221RP+
What is the Synology RS1221RP+?
The Synology RS1221RP+ is a 8-bay 2U redundant-power rackmount NAS designed for centralised file storage, backup and data management through Synology DSM.
Which processor is in the RS1221RP+?
It uses the AMD Ryzen V1500B with 4 cores, 8 threads, operating at 2.2 GHz.
How much memory does the RS1221RP+ include?
It includes 4 GB DDR4 ECC SODIMM and supports a verified maximum of 32 GB (16 GB × 2).
How many drive bays does the RS1221RP+ have?
It provides 8 and supports up to 12 (RX418 × 1).
Which drives are supported by the RS1221RP+?
The verified drive categories are 8 × 3.5-inch SATA HDD or 2.5-inch SATA HDD/SSD. Confirm the exact drive model on Synology's current compatibility list before purchase.
What network ports are built into the RS1221RP+?
The RS1221RP+ includes 4 × 1GbE RJ-45.
What expansion is available for the RS1221RP+?
It provides 1 × Gen3 x8 slot (x4 link) plus 1 × eSATA. Use only options listed for the exact model.
Does the RS1221RP+ have redundant power?
Yes. The RS1221RP+ includes redundant power supplies.
What are the dimensions of the RS1221RP+?
It measures 88 × 482 × 407.5 mm in height × width × depth and weighs 8.4 kg.
What warranty applies to the RS1221RP+?
Synology specifies 3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus. Warranty coverage starts from the purchase date shown on the receipt, and extension availability varies by region.
- This product is supplied diskless unless the listing explicitly states otherwise; storage drives are sold separately.
- Confirm drives, memory, expansion units, rail kits and add-in cards on Synology’s current compatibility list for the exact model before purchase.
- Actual storage capacity and performance depend on the installed drives, RAID or storage configuration, network and workload.
- The RX418 expansion unit, compatible PCIe cards and rail kit are sold separately.
