Description
Built with a quad-core processor, an AES-NI hardware encryption engine, and Btrfs file system support, the DiskStation DS1621+ 6-Bay NAS Enclosure from Synology is a high-performance system designed to store and protect critical assets, while also offering storage scalability so you can start small and expand as your data grows. Boost storage performance by installing dual M.2 2280 NVMe SSDs for high-IOPS system caching, or enhance network speeds by adding a 10GbE SFP+ or RJ45 NIC to the PCIe 3.0 x8/x4 slot. This NAS is equipped with six drive bays that are capable of natively supporting 3.5″ SATA hard drives, as well as 2.5″ SATA hard drives and SSDs, for data storage. Using its six drive bays, this NAS will allow you to store and share many files, including videos, music, photos, and documents with up to 2048 user accounts and 1000 maximum concurrent connections.
FEATURES
6x 3.5/2.5″ SATA III Drive Bay
AMD Ryzen V1500B 2.2GHz Quad-Core
4GB DDR4 RAM
4x Gigabit RJ-45 Ethernet Ports
3x USB 3.2 Ports, 2x eSATA Ports
Up to 110,608 4K Random Read IOPS & 2317 MB/s Sequential Read Speeds
2x M.2 SSD Slots for Synology SSD Cache Functionality
Ultimate File Management & Sharing
Expand up to 16 Drives with 2x DX517 Expansion Units
TECHNICAL SPECIFICATIONS
Brand: Synology
Series: DiskStation
Model: DS1621
CPU
CPU Model: AMD Ryzen V1500B
CPU Quantity: 1
CPU Architecture: 64-bit
CPU Frequency: 4-core 2.2 GHz
Hardware Encryption Engine (AES-NI): Yes
Memory
System Memory: 4 GB DDR4 ECC SODIMM
Memory Module Pre-installed: 4 GB (4 GB x 1)
Total Memory Slots: 2
Maximum Memory Capacity: 32 GB (16 GB x 2)
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion
Synology reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance
Storage
Drive Bays: 6
Maximum Drive Bays with Expansion Unit: 16 (DX517 x 2)
M.2 Drive Slots 2 (NVMe)
Compatible Drive Type* (See all supported drives): 3.5″ SATA HDD
2.5″ SATA HDD
2.5″ SATA SSD
M.2 2280 NVMe SSD
*”Compatible drive type” indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay
Maximum Single Volume Size: 108 TB
*Each internal volume (may consist of multiple drives) is expandable up to 108 TB
Hot Swappable Drive: Yes
External Ports
RJ-45 1GbE LAN Port: 4 (With Link Aggregation / Failover support)
USB 3.2 Gen 1 Port: 3
*The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019
eSATA Port: 2
PCIe
PCIe Expansion: 1x Gen3 x8 slot (x4 link)
File System
Internal Drives Btrfs:
EXT4
External Drives Btrfs:
EXT4
EXT3
FAT
NTFS
HFS
exFAT
File Services
File Protocol: SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections: 1,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion): 2,000
Windows Access Control List (ACL) Integration: Yes
NFS Kerberos Authentication: Yes
Notes: Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
Cooling
System Fan: 92 x 92 mm x 2 pcs
Fan Speed Mode: Full-Speed Mode
Cool Mode
Quiet Mode
Easy Replacement System Fan: Yes
Noise Level: 25.2 dB(A)
*Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Power
Power Supply Unit / Adapter: 250 W
AC Input Power Voltage: 100 V to 240 V AC
Power Frequency: 50/60 Hz, Single Phase
Power Consumption: 51.22 W (Access)
25.27 W (HDD Hibernation)
*Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s)
British Thermal Unit: 174.77 BTU/hr (Access)
86.22 BTU/hr (HDD Hibernation)
Power Recovery: Yes
Scheduled Power On / Off: Yes
Temperature
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Storage Temperature: -20°C to 60°C (-5°F to 140°F)
Relative Humidity: 5% to 95% RH
General
Features: Wake on LAN / WAN
10GbE support
110K, 174% higher 4K random read IOPS
Cache Acceleration with Dual M.2 2280 slots for NVMe Cache
Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more
Supports two DX517 expansion units for a total of 16 bays
Certification: FCC, CE, BSMI, EAC, CCC, KC, VCCI, RCM
Environment: RoHS Compliant
Packaging Content: 1x Main Unit
1x Accessory Pack
1x AC Power Cord
1x RJ-45 LAN Cable
1x Quick Installation Guide
Product Dimensions: 166 x 282 x 243 mm (H x W x D)
Product Weight: 5.1 kg
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