8-bay short-depth 2U rackmount NAS
Synology RackStation RS1221+ 8-Bay Short-Depth Rackmount NAS
The Synology RackStation RS1221+ is an eight-bay short-depth 2U NAS with a 4-core AMD Ryzen processor, expandable ECC memory, four 1GbE ports 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
Centralise business data in a short-depth eight-bay rack system
At 306.6 mm deep, the RS1221+ is designed for space-conscious rack installations that still need eight hot-swappable bays, ECC memory and room for network or cache expansion. Synology DSM supports file management, backup, synchronisation and system administration from one platform.
Eight hot-swappable bays
Create centralised SATA storage for files, backup and shared business datasets.
Short 306.6 mm depth
The compact 2U chassis is suitable for shallow racks and supports direct two-post mounting.
Expand to 12 bays
One RX418 unit provides four additional bays when capacity requirements grow.
Ryzen and ECC memory
The 4-core, 8-thread AMD Ryzen V1500B is paired with 4 GB DDR4 ECC SODIMM.
PCIe upgrade path
The Gen3 x8 slot with x4 link supports compatible networking or adapter-card options.
Four onboard 1GbE ports
Multiple Gigabit Ethernet interfaces support flexible network design and link aggregation.
Who is the Synology RS1221+ best for?
A strong choice for
- Short-depth rack installations
- Small and medium-sized business storage
- Backup and file-sharing services
- Teams expanding from eight to twelve bays
- Deployments wanting four onboard 1GbE ports
Consider another model if you need
- A redundant power supply
- Built-in 10GbE connectivity
- More than twelve drive bays
- A desktop enclosure instead of rackmount storage
Key specifications
- Model
- RS1221+
- Product type
- 8-bay short-depth 2U 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 × 306.6 mm
- Warranty
- 3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus
Full technical specifications
Processor and memory
| Model | RS1221+ |
|---|---|
| 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 × 306.6 mm |
| Weight | 6.9 kg |
| Rack installation | 4-post 19-inch rack with compatible rail kit, or 2-post 19-inch rack by direct mounting |
| System fans | 80 × 80 mm × 2 |
| Fan modes | Full-speed, cool and quiet |
| Noise level | 37.8 dB(A) |
| Power recovery | Supported |
| Power supply unit | 250 W |
| Redundant power supply | No |
| AC input | 100 V to 240 V AC |
| Power frequency | 50/60 Hz, single phase |
| Power consumption | 49.89 W (access); 22.64 W (HDD hibernation) |
| British Thermal Unit | 170.23 BTU/hr (access); 77.25 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 × 1; C13-to-C14 power cord × 1; quick installation guide × 1 |
Frequently asked questions about the Synology RS1221+
What is the Synology RS1221+?
The Synology RS1221+ is a 8-bay short-depth 2U rackmount NAS designed for centralised file storage, backup and data management through Synology DSM.
Which processor is in the RS1221+?
It uses the AMD Ryzen V1500B with 4 cores, 8 threads, operating at 2.2 GHz.
How much memory does the RS1221+ 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 RS1221+ have?
It provides 8 and supports up to 12 (RX418 × 1).
Which drives are supported by the RS1221+?
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 RS1221+?
The RS1221+ includes 4 × 1GbE RJ-45.
What expansion is available for the RS1221+?
It provides 1 × Gen3 x8 slot (x4 link) plus 1 × eSATA. Use only options listed for the exact model.
Does the RS1221+ have redundant power?
No. Synology specifies a single 250 W power supply for the RS1221+.
What are the dimensions of the RS1221+?
It measures 88 × 482 × 306.6 mm in height × width × depth and weighs 6.9 kg.
What warranty applies to the RS1221+?
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.
