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Black 2U rackmount NAS chassis with eight front drive bays, four RJ-45 ports, two USB ports

Synology Inc.

Synology Inc. RS1221RP+ 8-bay rackmount NAS, AMD Ryzen V1500B 2.2 GHz, 4GB DDR4

SKU CH-0PBS-SEY8K MPN RS1221RP+

Eight-bay rackmount NAS with AMD Ryzen V1500B quad-core 2.2 GHz CPU, 4 GB DDR4 ECC memory expandable to 32 GB, four Gigabit RJ-45 ports, two USB 3.2 Gen 1 ports.

  • Port RJ-454 x 10/100/1000M
  • Port USB2 x USB3.2 Gen 1
  • Port eSATA1 x eSATA
  • HDD Interface8 x SATA (8 x Bay)
  • Port Others1 x PCIe 3.0 4-lane x8 slot Supports network interface cards
  • Form Factor8-Bay

Form Factor 8-Bays

Option RS1221RP+

  • Quad-core AMD Ryzen V1500B at 2.2 GHz powers demanding workloads
  • Four 1GbE RJ-45 ports plus PCIe 3.0 x8 slot for 10GbE upgrades
  • 8 SATA bays support 3.5" HDD, 2.5" HDD and 2.5" SSD with RAID 0, 1, 5, 6, 10, SHR
  • Redundant power supplies protect uptime in single-PDU failures
  • 4 GB DDR4 ECC memory expandable to 32 GB for larger caches

Compact 8-bay rackmount NAS

The Synology RS1221RP+ is a 2U rackmount network-attached storage system built around an AMD Ryzen V1500B quad-core processor running at 2.2 GHz. It ships with 4 GB of DDR4 ECC memory, expandable to 32 GB, and provides eight drive bays for 3.5-inch or 2.5-inch SATA drives. The unit targets small-to-mid-size businesses needing high-throughput file storage, virtualization targets or backup repositories in a short-depth chassis.

Redundant power and expansion slot

This RP model includes dual redundant power supplies to maintain service continuity if one supply or power distribution unit fails. A single PCIe 3.0 x8 slot accepts Synology network interface cards or an M.2 NVMe SSD adapter for read-write caching, letting administrators add 10 GbE connectivity or flash acceleration without occupying drive bays. Two USB 3.2 Gen 1 ports and one eSATA port provide additional attach points for external drives or backup targets.

depth design for shallow racks

At 399 mm deep the RS1221RP+ fits standard 2-post racks and shallow 4-post cabinets where full-depth 2U servers cannot go. Front-panel LEDs show power, system status, alert and per-drive health at a glance. Four built-in Gigabit RJ-45 ports support link aggregation and failover for multi-user SMB, NFS, iSCSI and VPN workloads. The operating range spans 0 °C to 35 °C. Buyers needing more than eight internal drives must add an RX418 expansion unit; the chassis itself cannot accommodate additional bays.

Highlights

  • Quad-core AMD Ryzen V1500B at 2.2 GHz powers demanding workloads
  • Four 1GbE RJ-45 ports plus PCIe 3.0 x8 slot for 10GbE upgrades
  • 8 SATA bays support 3.5" HDD, 2.5" HDD and 2.5" SSD with RAID 0, 1, 5, 6, 10, SHR
  • Redundant power supplies protect uptime in single-PDU failures
  • 4 GB DDR4 ECC memory expandable to 32 GB for larger caches

Specifications

BrandSynology
ModelRS1221RP+
Port RJ-454 x 10/100/1000M
Port USB2 x USB3.2 Gen 1
Port eSATA1 x eSATA
HDD Interface8 x SATA (8 x Bay)
Port Others1 x PCIe 3.0 4-lane x8 slot
Supports network interface cards and M.2 NVMe SSD adapter cards for SSD cache
Form Factor8-Bay
ProcessorAMD Ryzen V1500B quad-core 2.2 GHz
Installed Memory4GB DDR4
Max Memory Capacity32GB
Included HDD CapacityDiskless System
Drive Compatibility3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
RAIDRAID 0, 1, 5, 6, 10, JBOD, Basic, Synology Hybrid RAID (SHR)
Supported ProtocolsSMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP)
LEDsPower Indicator
Status Indicator
Alert Indicator
Drive Status Indicators
Power100 V to 240 V AC, 50/60 Hz, single phase
FeaturesHigh Performance
Tackle multi-user environments effortlessly with up to 2,315 MB/s read and 1,147 MB/s write performance
Compact Deployment
The RS1221+ and RS1221RP+ feature a short depth of just 298 mm and 399 mm respectively
10GbE Ready
Improve network performance by 5X with a PCIe SFP+ or RJ-45 network card
High Availability
Configure two units together to create a Synology High Availability (SHA) cluster for maximum service uptime and minute-level failover
UsageHigh read/write performance with RAID
TemperatureOperating temperature: 0°C to 35°C (32°F to 95°F)
Storage temperature: -20°C to 60°C (-5°F to 140°F)
Humidity5% to 95% RH
Dimensions3.46" x 18.98" x 16.04" (with server handles)
Weight18.52 lbs.
Package Contents1 x RS1221+/RS1221RP+ main unit
1 x Quick Installation Guide
1 x Accessory pack
2 x AC power cords (RS1221RP+)
Shipping weight11.68 kg
Package size578 × 521 × 220 mm

Other versions of this model

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Questions about this item

Can the 4 GB DDR4 memory be upgraded later, and what is the maximum capacity?

Yes, the installed 4 GB DDR4 ECC memory can be expanded up to 32 GB using compatible DDR4 modules.

Which performance limit is reached first during sustained heavy workloads — the 1 GbE network ports or the AMD Ryzen V1500B CPU?

The four 1 GbE RJ-45 ports will saturate before the quad-core 2.2 GHz processor reaches its ceiling, so aggregate throughput tops out at the network interface.

How loud and hot does the RS1221RP+ get when running 24/7 with a full set of drives?

Operating temperature range is 0 °C to 35 °C; dual redundant power supplies and system fans keep the 399 mm depth chassis within spec during continuous operation.

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