4-bay short-depth 1U rackmount NAS
Synology RackStation RS422+ 4-Bay Short-Depth Rackmount NAS
The Synology RackStation RS422+ is a short-depth four-bay 1U NAS designed for small businesses and home labs that need centralised file storage, backup and sharing in a compact rack enclosure.
- Processor
- AMD Ryzen R1600
- Memory
- 2 GB DDR4 ECC
- Drive bays
- 4 / up to 4
- Networking
- 2 × 1GbE RJ-45
Bring everyday data management to shallow rack environments
At only 327.5 mm deep, the RS422+ is designed for space-conscious installations. It combines four hot-swappable SATA bays, ECC memory, dual 1GbE networking and a dedicated network-upgrade slot with Synology DSM for practical file, backup and synchronisation workflows.
Short-depth 1U chassis
The 327.5 mm depth makes the RS422+ easier to deploy in compact racks and wall-mounted cabinets.
Four hot-swappable bays
Use compatible SATA HDDs or SSDs for centralised business or lab storage.
ECC system memory
The installed 2 GB DDR4 ECC memory helps protect in-memory data integrity.
Dual 1GbE networking
Two onboard Gigabit Ethernet ports support flexible network configuration for everyday file services.
Network upgrade slot
A dedicated Gen3 x2 slot supports the compatible network upgrade module specified for the RS422+.
DSM data services
Synology DSM provides one platform for file management, synchronisation, backup and system administration.
Who is the Synology RS422+ best for?
A strong choice for
- Small-business file storage and backup
- Home labs needing a compact rackmount NAS
- Short-depth rack or direct 2-post deployment
- Teams wanting dual 1GbE networking
- Four-bay centralised data management
Consider another model if you need
- More than four internal drive bays
- Storage expansion through an external bay unit
- Built-in 10GbE connectivity
- A redundant power supply
Key specifications
- Model
- RS422+
- Product type
- 4-bay short-depth 1U rackmount NAS
- Processor
- AMD Ryzen R1600, 2 cores, 4 threads
- CPU frequency
- 2.6 GHz base / 3.1 GHz turbo
- System memory
- 2 GB DDR4 ECC
- Maximum memory
- Not specified
- Drive bays
- 4; up to 4
- Drive types
- 4 × 3.5-inch SATA HDD or 2.5-inch SATA SSD
- Networking
- 2 × 1GbE RJ-45
- PCIe expansion
- 1 × Gen3 x2 network upgrade slot
- Dimensions (H × W × D)
- 44 × 478 × 327.5 mm
- Warranty
- 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus
Full technical specifications
Processor and memory
| Model | RS422+ |
|---|---|
| CPU model | AMD Ryzen R1600 |
| CPU quantity | 1 |
| CPU cores and threads | 2 cores, 4 threads |
| CPU architecture | 64-bit |
| CPU frequency | 2.6 GHz base / 3.1 GHz turbo |
| Hardware encryption engine | Supported |
| System memory | 2 GB DDR4 ECC |
| Pre-installed memory | 2 GB |
| Total memory slots | Not specified |
| Maximum memory capacity | Not specified |
| Memory guidance | Use Synology memory modules and follow the exact-model manual for supported configurations |
Storage, network and expansion
| Drive bays | 4 |
|---|---|
| Maximum drive bays with expansion | 4 |
| Compatible drive types | 4 × 3.5-inch SATA HDD or 2.5-inch SATA SSD |
| Hot-swappable front drives | Supported |
| Network ports | 2 × 1GbE RJ-45 |
| USB ports | 1 × USB 3.2 Gen 1 |
| Expansion connection | None specified |
| PCIe expansion | 1 × Gen3 x2 network upgrade slot |
| Drive compatibility | Use only drives listed for the exact system on Synology’s current compatibility list |
Physical design and power
| Form factor | 1U |
|---|---|
| Size (H × W × D) | 44 × 478 × 327.5 mm |
| Weight | 4.38 kg |
| Rack installation | 4-post 19-inch rack with compatible rail kit, or 2-post 19-inch rack by direct mounting |
| System fans | 40 × 40 mm × 3 |
| Fan modes | Full-speed, cool and quiet |
| Noise level | 28.5 dB(A) |
| Power recovery | Supported |
| Power supply unit | 100 W |
| Redundant power supply | No |
| AC input | 100 V to 240 V AC |
| Power frequency | 50/60 Hz, single phase |
| Power consumption | 37.93 W (access); 13.43 W (HDD hibernation) |
| British Thermal Unit | 129.42 BTU/hr (access); 45.83 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, UKCA, EAC, CCC, KC, BIS |
| Environment | RoHS compliant |
| Warranty | 3-year hardware warranty, extendable to 5 years with EW201 or Extended Warranty Plus |
| Package contents | Main unit × 1; accessory pack × 1; AC power cord × 1; quick installation guide × 1 |
Frequently asked questions about the Synology RS422+
What is the Synology RS422+?
The Synology RS422+ is a 4-bay short-depth 1U rackmount NAS designed for centralised file storage, backup and data management through Synology DSM.
Which processor is in the RS422+?
It uses the AMD Ryzen R1600 with 2 cores, 4 threads, operating at 2.6 GHz base / 3.1 GHz turbo.
How much memory does the RS422+ include?
It includes 2 GB DDR4 ECC. Synology does not publish a memory-slot count or maximum capacity in the exact-model specification.
How many drive bays does the RS422+ have?
It provides 4 and supports up to 4.
Which drives are supported by the RS422+?
The verified drive categories are 4 × 3.5-inch SATA HDD or 2.5-inch SATA SSD. Confirm the exact drive model on Synology's current compatibility list before purchase.
What network ports are built into the RS422+?
The RS422+ includes 2 × 1GbE RJ-45.
What expansion is available for the RS422+?
It provides 1 × Gen3 x2 network upgrade slot. Use only options listed for the exact model.
Does the RS422+ have redundant power?
No. Synology specifies a single 100 W power supply for the RS422+.
What are the dimensions of the RS422+?
It measures 44 × 478 × 327.5 mm in height × width × depth and weighs 4.38 kg.
What warranty applies to the RS422+?
Synology specifies 3-year hardware warranty, extendable to 5 years with EW201 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 compatible network upgrade module and optional rail kit are sold separately.
