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Black 8-bay rackmount NAS chassis with redundant power supplies

Synology Inc.

Synology RS1221RP+ 8-Bay Rackmount NAS (Diskless)

SKU CH-6ER6-G4QQ3

Eight-bay rackmount NAS with AMD Ryzen V1500B quad-core 2.2 GHz CPU, 4 GB DDR4 expandable to 32 GB, four Gigabit RJ-45 ports, two USB 3.2 Gen 1 ports, one eSATA port, one PCIe 3.0 x8 slot.

  • CPUAMD Ryzen V1500B quad-core 2.2 GHz
  • Form factor8-Bay
  • LAN ports4 × 10/100/1000M
  • USB ports2 x USB3.2 Gen 1
  • Port esata1 x eSATA
  • Drive interface8 x SATA (8 x Bay)
  • Quad-core 2.2 GHz Ryzen CPU powers multi-user workloads
  • Redundant power supplies reduce downtime risk in rack deployments
  • Expandable DDR4 memory up to 32 GB for growing demands
  • Four 1 GbE ports plus PCIe 3.0 slot enable 10 GbE upgrades
  • Short 298 mm depth fits shallow racks and 2-post cabinets

8-Bay Rackmount NAS for Multi-User Workloads

The Synology RS1221RP+ is an 8-bay rackmount NAS built around an AMD Ryzen V1500B quad-core 2.2 GHz processor with 4GB DDR4 ECC memory expandable to 32GB. It targets businesses and tech-savvy users who need high-throughput file storage, virtualization support, or backup consolidation in a compact 2U form factor. Redundant power supplies and Synology High Availability clustering provide minute-level failover for critical uptime requirements.

Tool-Less Drive Installation with PCIe Expansion

Eight front-loading drive trays support tool-less installation of 3.5" SATA HDDs, 2.5" SATA HDDs, and 2.5" SATA SSDs. A single PCIe 3.0 x8 slot accepts 10GbE network cards or M.2 NVMe SSD adapter cards for read/write caching. Common issues include forgetting to enable SHR or RAID before writing data, and inserting drives while the unit is powered on instead of using hot-swap correctly.

Verify Rack Depth and Network Infrastructure

Confirm your rack or cabinet provides at least 399 mm usable depth for the RP+ model with redundant PSUs. Ensure your switch and cabling support link aggregation across the four onboard 1GbE RJ-45 ports or plan for a 10GbE add-in card. Check that your environment stays within 0°C to 35°C operating temperature and 5% to 95% relative humidity. Memory upgrades require DDR4 ECC UDIMM modules.

How it compares

Measured against everything we stock in Rack-Mounted NAS Servers, at today’s prices. Recalculated every night.

Price $1,266.99
Cheaper than about 95% of the 763 comparable items (median $6,564.99).

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSynology
Model nameRS1221RP+
Processor
CPUAMD Ryzen V1500B quad-core 2.2 GHz
Memory
Installed RAM4 GB DDR4
Maximum RAM capacity32 GB
Storage
Drive interface8 x SATA (8 x Bay)
Drives includedDiskless System
Supported RAID modes0, 1, 5, 6, 10, JBOD, Basic, Synology Hybrid RAID (SHR)
Connectivity
Protocol supportSMB,AFP,NFS,FTP,WebDAV,Rsync
Ports & slots
LAN ports4 × 10/100/1000M
USB ports2 x USB3.2 Gen 1
Port esata1 x eSATA
Port others1 x PCIe 3.0 4-lane x 8 slot
Supports network interface cards and M.2 NVMe SSD adapter cards for SSD cache
Power
Power details100 V to 240 V AC, 50/60 Hz, single phase
Size & build
Form factor8-Bay
Product dimensions16.1 in × 19 in × 3.5 in
Product weight18.52 lb (8.4 kg)
Compatibility
Compatible drives3.5 in SATA HDD
2.5 in SATA HDD
2.5 in SATA SSD
In the box
In the box1 x RS1221+/RS1221RP+ main unit
1 x Quick Installation Guide
1 x Accessory pack
2 x AC power cords (RS1221RP+)
Environment & compliance
Temperature rangeOperating temperature: 0 °C to 35 °C (32 °F to 95 °F)
Storage temperature: -20 °C to 60 °C (-5 °F to 140 °F)
Humidity range5% to 95% RH
More details
Indicator lightsPower Indicator
Status Indicator
Alert Indicator
Drive Status Indicators

Questions about this item

How can I verify the RS1221RP+ is performing at up to 2,315 MB/s read and 1,147 MB/s write after setup?

Run DSM benchmark tools or file transfers over the four 1 GbE ports; the status and drive LEDs will show normal activity while the Power and Alert indicators stay solid green.

The unit is diskless — which drives and memory must I buy separately?

Add eight 3.5" or 2.5" SATA HDDs or SSDs; install up to 32 GB of DDR4 ECC UDIMM modules in the two memory slots.

Which RS1221RP+ configuration should I choose — the standard 4 GB model or a memory upgrade?

Start with the included 4 GB DDR4 for typical file services; upgrade to 32 GB if you run virtual machines, Docker containers, or SSD cache on the PCIe 3.0 x8 slot.

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