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Rectangular black six-bay desktop NAS unit with front drive trays

Synology Inc.

Synology DS1621+ 6-Bay Desktop NAS 4GB DDR4 Ryzen V1500B

SKU CH-ZV61-M0T9Z MPN DS1621+

Six-bay desktop NAS with a Ryzen V1500B processor, 4 GB DDR4, four 1 GbE ports and dual M.2 NVMe slots for cache acceleration

  • TypeDesktop NAS
  • Ports2 x eSATA / 3 x USB 3.2 Gen 1 / 4 x 1GbE
  • Port RJ-454 x 10/100/1000M
  • Port USB3 x USB3.0
  • Port eSATA2 x eSATA
  • HDD Interface6 x SATA (6 x Bay)

Form Factor 6-Bay

Option DS1621+

  • 6-bay desktop NAS scales storage to 108 TB with six SATA drive bays
  • AMD Ryzen V1500B 4-core 2.2 GHz processor powers demanding workloads and virtualization
  • Four 1GbE RJ-45 ports enable link aggregation for higher network throughput
  • 4 GB DDR4 memory expandable to 32 GB via two SODIMM slots
  • Dual M.2 2280 slots add NVMe cache to accelerate HDD arrays

6-bay desktop NAS for growing data

The Synology DS1621+ is a diskless 6-bay desktop NAS built around an AMD Ryzen V1500B quad-core 2.2 GHz processor with 4GB DDR4 installed. It targets small businesses and advanced home users who need centralised file storage, backup and collaboration services with room to scale. Two DDR4 SODIMM slots support up to 32GB total memory for heavier workloads.

108 TB raw capacity with M.2 cache headroom

Six SATA drive bays accept 3.5" HDDs, 2.5" HDDs, 2.5" SSDs and M.2 2280 NVMe SSDs, reaching a maximum raw capacity of 108 TB. Dual M.2 2280 slots add NVMe read/write caching to accelerate HDD arrays. Storage can grow further to 16 drives by attaching two DX517 expansion units when the six internal bays are full.

Four 1GbE ports and versatile I/O

Four RJ-45 10/100/1000M ports enable link aggregation or separate network segments without extra cards. Three USB 3.2 Gen 1 ports and two eSATA ports connect external drives or backup targets directly. A 250 W internal supply runs on 100–240 V AC, drawing 51.22 W during access and 25.27 W in hibernation, while the chassis operates from 0 °C to 40 °C.

Highlights

  • 6-bay desktop NAS scales storage to 108 TB with six SATA drive bays
  • AMD Ryzen V1500B 4-core 2.2 GHz processor powers demanding workloads and virtualization
  • Four 1GbE RJ-45 ports enable link aggregation for higher network throughput
  • 4 GB DDR4 memory expandable to 32 GB via two SODIMM slots
  • Dual M.2 2280 slots add NVMe cache to accelerate HDD arrays

Specifications

BrandSynology
ModelDS1621+
TypeDesktop NAS
Ports2 x eSATA / 3 x USB 3.2 Gen 1 / 4 x 1GbE
Port RJ-454 x 10/100/1000M
Port USB3 x USB3.0
Port eSATA2 x eSATA
HDD Interface6 x SATA (6 x Bay)
Form Factor6-Bay
ProcessorAMD Ryzen V1500B 4-core 2.2 GHz
Installed Memory4GB DDR4
Max Memory Capacity32GB
Memory Slot2 x DDR4 SODIMM
Included HDD CapacityDiskless System
Max Capacity108TB
Drive Compatibility3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
Power250 W, 100 V to 240 V AC, 50/60 Hz, Single Phase
Power Consumption51.22 W (Access)
25.27 W (HDD Hibernation)
TemperatureOperating Temperature: 0°C to 40°C (32°F to 104°F)
Storage Temperature: -20°C to 60°C (-5°F to 140°F)
Dimensions6.50" x 11.10" x 9.60"
Weight11.20 lbs.
Package Contents1 x Main Unit
1 x Accessory Pack
1 x AC Power Cord
2 x RJ-45 LAN Cable
1 x Quick Installation Guide
Shipping weight6.90 kg
Package size400 × 330 × 311 mm

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Questions about this item

Will the four 1GbE ports and two eSATA ports let me keep using my older 1 GbE switch and external eSATA drive enclosure?

Yes, the four RJ-45 ports run at 10/100/1000M and the two eSATA ports accept legacy SATA enclosures, so existing 1 GbE network gear and eSATA storage connect directly.

How can I confirm the AMD Ryzen V1500B processor and 4GB DDR4 memory are recognised after first boot?

Open DSM Control Panel → Info Center; the System page shows the quad-core 2.2 GHz CPU and 4 GB DDR4 installed, and the Resource Monitor graphs live CPU and memory usage.

The unit ships diskless — which drives must I buy separately and what else is included in the box?

You need to purchase 3.5″ SATA HDDs, 2.5″ SATA HDDs or SSDs, or M.2 2280 NVMe SSDs for the two cache slots; the box contains the NAS, power cord, two RJ-45 cables, drive trays with screws, and a quick-install guide.

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