Name: Synology DiskStation DS1821+
Brand: Synology
SKU: DS1821+
Price: 1559.81 SGD
Availability: InStock

Description
Hardware Specifications
Software Specifications
Shipping
Reviews

Description

8-Bay Diskstation (up to 18-bay), Quad Core 2.2GHz, 4GB RAM (up to 32GB), 10GbE NIC support (optional)

High capacity storage and data protection for anyone

Designed for scalability and performance

The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.

CPU AMD Ryzen^™Quad-core 2.2 GHz
Cache Acceleration Dual M.2 2280 slots for NVMe Cache
Performance 113K 4K random read IOPS¹
Scalability Expand up to 18 drives with two DX517 expansion unit

A powerhouse on all fronts

The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.¹

Synology Drive - 47.01% faster in file indexing
Moments - 49.13% faster in photo indexing
Web Server - 175% faster in PHP indexing
Transfer Performance - 177% faster random IOPS

Turbocharge and expand it

networking or for higher storage capacity.

2 x M.2 NVMe
Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more
10GbE support
Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows
Storage Expansion
Supports two DX517 expansion units for a total of 18 bays

Ultimate file management and sharing

File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, DS620slim supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

Fully certified storage virtualization solutions

Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

Ultimate Backup Solution

DS1621+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

Active Backup for Business
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed. Learn more
Hyper Backup
Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety. Learn more
Synology Drive
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery. Learn more
Active Backup for Microsoft 365 / G Suite
On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365 | G Suite

¹ Performance figures are achieved in the Synology lab with optimized network and configuration settings. Actual performance could vary in different environments. Comparison done against prior-generation 6-bay DS1618+. For full details on the test setup, please visit the Synology performance page here.

Hardware Specifications

Hardware Specs
CPU	CPU Model	AMD Ryzen V1500B
	CPU Architecture	64-bit
	CPU Frequency	4-Core 2.2 GHz
	Hardware Encryption Engine (AES-NI)	Yes
Memory	System Memory¹	4 GB DDR4 ECC SODIMM
	Pre-installed Memory Module	4GB (1 x 4GB)
	Total number of Memory Slot	2
	Maximum Memory Capacity	32GB (16GB x 2)
Storage	Drive Bays	8
	Maximum Drive Bays with Expansion Unit	18 (DX517 x 2)
	M.2 Drive SLots	2 (NVMe)
	Compatible Drive Type² (See all supported drives)	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD M.2 2280 NVMe SSD
	Maximum Single Volume Size³	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	4
	eSATA Port	2
PCIe	PCIe Expansion	1 x Gen3 x8 slot (x4 link)
File System	Internal Drives	Btrfs EXT4
	External Drives	Btrfs EXT4 EXT3 FAT NTFS HFS+ exFAT (Purchased Separately)
Appearance	Size (Height x Width x Depth)	166 mm x 343 mm x 243 mm
	Weight	6 kg
Others	System Fan	120 mm x 120 mm x 2 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode
	Easy Replacement System Fan	Yes
	Brightness Adjustable Front LED Indicators	Yes
	Power Recovery	Yes
	Noise Level⁴	22.2 dB(A)
	Scheduled Power On / Off	Yes
	Wake on LAN / WAN	Yes
	Power Supply Unit / Adapter	250 W
	AC Input Power Voltage	100 V to 240 V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption⁵	59.8 W (Access) 26.18 W (HDD Hibernation)
	British Thermal Unit	204.05 BTU/hr (Access) 89.33 BTU/hr (HDD Hibernation)
Temperature	Operating Temperature	5°C to 40°C (40°F to 104°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Certification	FCC CE BSMI EAC CCC KC VCCI RCM
Warranty		3 Years

¹ 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.

² "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.

³ Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility list.

⁴ 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%.

⁵ Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).

Notes:

Model specifications are subject to change without prior notice.

The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.

The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.

If usage requirements exceed the specifications above, please contact our regional partners for professional advice.

Software Specifications


DSM Specs
Storage Management	Maximum Internal Volume Number	64
	SSD read/write cache (White Paper)	Yes
	SSD TRIM	Yes
	Supported RAID Type	Synology Hybrid RAID Basic JBOD RAID 0 RAID 1 RAID 5 RAID 6 RAID 10
	RAID Migration	Basic to RAID 1 Basic to RAID 5 RAID 1 to RAID 5 RAID 5 to RAID 6
	Volume Expansion with Larger HDDs	Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10
	Volume Expansion by Adding a HDD	Synology Hybrid RAID JBOD RAID 5 RAID 6
	Global Hot Spare Supported RAID Type	Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10
File Services¹	File Protocol	CIFS/AFP/NFS/FTP/WebDAV
	Maximum Concurrent CIFS/AFP/FTP Connections	1,000
	Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)	2,000
	Windows Access Control List (ACL) Integration	Yes
	NFS Kerberos Authentication	Yes
Account & Shared Folder	Maximum Local User Accounts	2,048
	Maximum Local Groups	256
	Maximum Shared Folder	512
	Maximum Shared Folder Sync Tasks	16
High Availability	Synology High Availability	Yes
Log Center	Syslog Events per Second	800
Virtualization Support	VMware vSphere 6 with VAAI	Yes
	Windows Server 2016	Yes
	Windows Server 2019	Yes
	Citrix Ready	Yes
	OpenStack	Yes
General Specifications	Networking Protocols	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
	Supported Browsers	Google Chrome Firefox Microsoft Edge Internet Explorer 10 onwards Safari 10 onwards Safari (iOS 10 onwards) Google Chrome (Android 6.0 onwards)
	Supported Language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

¹ 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.

Add-on Package
Antivirus by McAfee (Trial)		Yes
Central Management System		Yes
Synology Chat	Maximum Users²	1,500
Document Viewer		Yes
Download Station	Maximum Concurrent Download Tasks	80
exFAT Access (Optional)		Yes
iSCSI Manager	Maximum iSCSI Target Number	128
	Maximum iSCSI LUN	256
	iSCSI LUN Clone/Snapshot, Windows ODX	Yes
MailPlus / MailPlus Server	Number of Free Email Accounts	5 (If you want to have more email accounts, you need to purchase additional licenses.)
	Maximum Simultaneous Number of People on the Line	150
	Maximum Server Performance	1,484,000 emails per day, approx, 45 GB
Media Server	DLNA Compliance	Yes
Moments	Facial Recognition	Yes
	Subject Recognition	Yes
	Auto Color & Rotate	Yes
	Moments Select	Yes
Snapshot Replication	Maximum Snapshots per Shared Folder	1,024
	Maximum of System Snapshots	65,536
Surveillance Station³	Maximum IP cam (Licenses required)	40 (including 2 Free License) (See All Supported IP Cameras)
	Total FPS (H.264)	1200 FPS @ 720p (1280x720) 1050 FPS @ 1080p (1920x1080) 600 FPS @ 3M (2048x1536) 440 FPS @ 5M (2591x1944) 320 FPS @ 4K (3840x2160)
	Total FPS (H.265)	1200 FPS @ 720p (1280x720) 1200 FPS @ 1080p (1920x1080) 1120 FPS @ 3M (2048x1536) 600 FPS @ 5M (2591x1944) 480 FPS @ 4K (3840x2160)
Synology Drive⁴	Recommended Number of Hosted Files	1,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
	Recommended Number of Concurrent Sync Clients	550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Synology Office⁵	Maximum Users	1,800
Video Station		Yes
Virtual Machine Manager⁶	Recommended Number of Virtual Machines	8
	Recommended Number of Virtual DSMs	8 (including 1 Free License)
VPN Server	Maximum Connections	30

² The number of concurrent HTTP connections for Synology Chat was configured to the maximum.

Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.

The maximum channel number also includes devices installed on Virtual DSM.

Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).

⁴

Exceeding the recommended numbers above will not block application operations, but may result in longer response time.

EXT4 file system and non-encrypted shared folders were used during the aforementioned testing.

⁵

Multiple files were opened for testing and each file was edited by 30 users simultaneously.

Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

⁶

The host that implements Synology High Availability does not support Virtual Machine Manager.

This specification varies depending on the system configuration and the amount of memory.

Shipping

Delivery

Shipping/Delivery Method	Cost	Lead Time	Delivery Period
Self Collection	Free	2 Working Days	Monday to Saturday
Standard Shipping	Orders below $500 = $15	5 Working Days	Monday to Friday
Standard Shipping	Orders above $500 = FREE	5 Working Days	Monday to Friday

For Self Collection, Please call our customer service hotline (+65 6262 0402) prior to coming down. Our store is located at 2 Gambas Crescent #06-21,
Nordcom II, Singapore 757044

Delivery/ self collection may take a longer time to reach you during this time and throughout campaigns and festive season.

All goods purchased from Compaqs.com can only be delivered to addresses within Singapore main island. We are unable to deliver to Jurong Island, Army Camps, Changi Airport, Tuas, Fisher Ports and etc.

We do not deliver outside Singapore or to post office boxes.

For products fulfilled by external vendors (Backorder), please refer to the individual product listing for more shipping information.

For more information, you may reach us via email to care@compaqs.com

Reviews

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Our Recommendation

Synology DiskStation DS1821+

8-Bay Diskstation (up to 18-bay), Quad Core 2.2GHz, 4GB RAM (up to 32GB), 10GbE NIC support (optional)

High capacity storage and data protection for anyone

Designed for scalability and performance

A powerhouse on all fronts

Turbocharge and expand it

Ultimate file management and sharing

Fully certified storage virtualization solutions

Ultimate Backup Solution

Estimate Shipping

Add A Coupon

Synology DiskStation DS1821+

Shipping & Delivery

FREE SHIPPING

Guaranteed Customer Satisfaction

BEST BRANDS

Our Recommendation

Synology DiskStation DS1821+

8-Bay Diskstation (up to 18-bay), Quad Core 2.2GHz, 4GB RAM (up to 32GB), 10GbE NIC support (optional)High capacity storage and data protection for anyone

Designed for scalability and performance

A powerhouse on all fronts

Turbocharge and expand it

Ultimate file management and sharing

Fully certified storage virtualization solutions

Ultimate Backup Solution

Estimate Shipping

Add A Coupon

Synology DiskStation DS1821+

8-Bay Diskstation (up to 18-bay), Quad Core 2.2GHz, 4GB RAM (up to 32GB), 10GbE NIC support (optional)

High capacity storage and data protection for anyone