Best DS1821plus price

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Synology DS1821+

 

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Live Deals Right Now

Synology DS925+ NAS Amazon usa USA 14% OFF, NOW $552.99 bf2025 [LINK]
Synology DS925+ NAS Amazon UK UK 15% OFF, NOW £472 inc.TAX [LINK]
Synology DS1525+ NAS B&H usa USA $160 OFF, NOW $639.99 [LINK]
Synology DS1825+ NAS Amazon usa USA NOW $919 ($230 OFF) BF2025 [LINK]
Synology DS1525+ NAS Amazon usa USA REDUCED TO $691.49 (15% OFF) bf2025 [LINK]
Synology DS225+ NAS AMZ US usa USA $303.49 (11% REDUCTION) BF2025 [LINK]
Synology DS124 NAS Amazon America usa USA NOW $139.99 (22% PRICE DROP) bf2025 [LINK]
Synology DiskStation DS124 1 Bay Desktop NAS Amazon UK UK 23.98 OFF (WAS 148) [LINK]
Synology - DDR4 - module - 16 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 92.3 OFF (WAS 341) [LINK]
Synology - DDR4 - module - 16 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 39.87 OFF (WAS 399) [LINK]
Synology 2-Bay DiskStation DS225+ (Diskless) Amazon UK UK 8.09 OFF (WAS 319) [LINK]
Synology DiskStation DS423 4 Bay Desktop NAS Enclosure Amazon UK UK 5 OFF (WAS 374) [LINK]
Synology DS423 4 Bay Desktop NAS: Efficient Data Storage and Backup Amazon UK UK 5 OFF (WAS 374) [LINK]
Synology - DDR4 - module - 8 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 6.44 OFF (WAS 409) [LINK]
Synology Disk Station DS620slim - NAS server - 6 bays - SATA 6Gb/s - RAID 0, 1, Amazon UK UK 4.43 OFF (WAS 518) [LINK]
SYNOLOGY 4-Bay DS925+ NAS with Expandable Capacity Amazon UK UK 6 OFF (WAS 585) [LINK]
Synology 4 bay NAS 1.4Ghz Quadcore CPU - RS422+ Rack Station, Black Amazon UK UK 10 OFF (WAS 605) [LINK]
Synology DVA1622 Deep Learning NVR Surveillance System 2-Bay Amazon UK UK 14.14 OFF (WAS 699) [LINK]
Synology DiskStation DS1525+ NAS/storage server Ryzen Embedded V1500B 8 GB DDR4 Amazon UK UK 10 OFF (WAS 725) [LINK]
Synology 5-Bay Expandable NAS Kit, DS1525+ AMD RyzenCPU with 8GB Memory, 2.5GbE Amazon UK UK 10 OFF (WAS 725) [LINK]
Synology DS223 20TB 2 Bay Desktop NAS Solution installed with 2 x 10TB Seagate I Amazon UK UK 14.16 OFF (WAS 847) [LINK]
Synology RackStation RS1221+ - NAS server - 8 bays - rack-mountable - SATA 6Gb/s Amazon UK UK 20 OFF (WAS 1020) [LINK]
Synology 8-Bay Expandable NAS Kit, DS1825+ AMD RyzenCPU with 8GB Memory, 2.5GbE Amazon UK UK 132.65 OFF (WAS 1208) [LINK]
Synology DS925+ 16TB (Synology HAT33) 4Bay Desktop NAS Amazon UK UK 218.11 OFF (WAS 1333) [LINK]
Synology 4-Bay RackStation RS822RP+ (Diskless) Amazon UK UK 60 OFF (WAS 1298) [LINK]
Synology RS1221RP+8 bay NAS 2.4Ghz Quadcore CPU Amazon UK UK 15.94 OFF (WAS 1450) [LINK]
Synology DS925+(2X 2.5GbE Ports, Ryzen V1500B, 4GB RAM) 4-Bay 16TB Bundle with 4 Amazon UK UK 33.78 OFF (WAS 1562) [LINK]
Synology DS925+ 32TB (Synology HAT33) 4Bay Desktop NAS Amazon UK UK 51.55 OFF (WAS 1822) [LINK]
Synology DS925+(2X 2.5GbE Ports, Ryzen V1500B, 4GB RAM) 4-Bay 24TB Bundle with 4 Amazon UK UK 115.94 OFF (WAS 1923) [LINK]
Synology RS2423+ 12 Bay Rack NAS Storage Solution Amazon UK UK 16.55 OFF (WAS 1918) [LINK]
Synology RackStation RS1619xs+ - NAS server - 4 bays - rack-mountable - SATA 6Gb Amazon UK UK 171.83 OFF (WAS 2080) [LINK]
Synology Disk Station DS2422+ - NAS server - 12 bays - SATA 3Gb/s - RAID 0, 1, 5 Amazon UK UK 21.01 OFF (WAS 1890) [LINK]
Synology RX1223RP Expansion, 12-Bay HDD/SSD Only Amazon UK UK 454.34 OFF (WAS 2758) [LINK]
Synology Diskstation NAS DS1525+ 30TB Bundle Western Digital (5X 6TB WD Red Plus Amazon UK UK 17.23 OFF (WAS 2408) [LINK]
Synology SA3400D NAS/storage server Rack (2U) Ethernet LAN D-1541 Amazon UK UK 134.39 OFF (WAS 2667) [LINK]
Synology DS425+ 80TB (Synology HAT53) 4 bay desktop NAS Amazon UK UK 319.46 OFF (WAS 3087) [LINK]
Synology DS2422+ 48TB 12 Bay Desktop NAS Solution installed with 12 x 4TB HAT330 Amazon UK UK 52.08 OFF (WAS 3401) [LINK]
Synology 12 bay RackStation RS3621RPxs (Diskless) Amazon UK UK 110.37 OFF (WAS 3789) [LINK]
Synology 12 bay RackStation RS3621xs+ (Diskless) Amazon UK UK 68.32 OFF (WAS 4594) [LINK]
Synology DS2422+ 192TB 12 Bay NAS Solution installed with 12 x 16 HAT3300 Drives Amazon UK UK 80.9 OFF (WAS 6248) [LINK]
Synology SA3610 NAS 12Bay Rack Station 4xGbE 2x10G Amazon UK UK 842.1 OFF (WAS 9579) [LINK]
Synology SA3200D - NAS server - 12 bays - rack-mountable - RAID 0, 1, 5, 6, 10, Amazon UK UK 451.48 OFF (WAS 9630) [LINK]
Synology RackStation RS3621xs+ NAS Rack (2U) Ethernet LAN Black D-1541, RS3621XS Amazon UK UK 122.28 OFF (WAS 12228) [LINK]
Synology DiskStation DS124 1-Bay 3.5inch Diskless 1xGbE NAS (Tower), Realtek RTD Amazon usa USA 78.38 OFF (WAS 312) [LINK]
Synology WRX560 Dual-band Wi-Fi 6 Router with a quad-core 1.4 GHz processor and Amazon usa USA 52.15 OFF (WAS 428) [LINK]
Synology 2-Bay NAS DS225+ (Diskless) Amazon usa USA 15.29 OFF (WAS 408) [LINK]
Synology DS725+ 2-Bay Diskstation NAS (Ryzen R1600, 4GB Ram), 1x 2.5GbE, 1x 1GbE Amazon usa USA 62.04 OFF (WAS 1161) [LINK]
Synology 8 Bay DiskStation DS1825+ (Diskless) Amazon usa USA 89.91 OFF (WAS 1240) [LINK]
Synology 8 Bay RackStation RS1221+ (Diskless) Amazon usa USA 6.39 OFF (WAS 1271) [LINK]
Synology 8 Bay RackStation RS1221+ (Diskless) & Rail Kit Sliding RKS-02 Amazon usa USA 8.91 OFF (WAS 1379) [LINK]
Synology DS925+(2X 2.5GbE Ports, Ryzen V1500B, 4GB RAM) 4-Bay 16TB Bundle with 4 Amazon usa USA 141.04 OFF (WAS 1590) [LINK]
Synology Expansion Unit RX1217 12-bay, 2 U, RX1217 (12-bay, 2 U 50Hz to 60Hz, si Amazon usa USA 74.87 OFF (WAS 1615) [LINK]
Synology DS925+(2X 2.5GbE Ports, Ryzen V1500B, 4GB RAM) 4-Bay 24TB Bundle with 4 Amazon usa USA 121.74 OFF (WAS 1969) [LINK]
Synology DS925+(2X 2.5GbE Ports, Ryzen V1500B, 4GB RAM) 4-Bay 32TB Bundle with 4 Amazon usa USA 70.2 OFF (WAS 1969) [LINK]
Synology RX1223RP 12-Bay Redundant Power Expansion Unit (Diskless) Amazon usa USA 49.93 OFF (WAS 2154) [LINK]
Synology 24 Bay FlashStation FS3600 (Diskless), 24-Bay; 16GB DDR4 Amazon usa USA 402.08 OFF (WAS 8042) [LINK]

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PERFORMANCE:
SpecsMeasureDS1821+
10GbE iSCSI Random IOPS 4KBRead IOPS/Write IOPS113458 / 54019
1GbE AFP Mac File Transfer 1MB file x 3000AFP Download MBs/AFP Upload MBs67 / 61
1GbE AFP Mac File Transfer 3GB file x 1AFP Download MBs/AFP Upload MBs93 / 94
1GbE SMB Windows File Transfer 1MB file x 3000Windows Download MBs/Windows Upload MBs92 / 76
1GbE SMB Windows File Transfer via Encrypted Shared Folder 1MB file x 3000Windows Download MBs/Windows Upload MBs87 / 50
1GbE Web Server PHP Response EfficiencyResponses per second 51348
Aggregated 10GbE SMB Sequential Throughput 64KBWrite MBs/Read MBs1150 / 2313
Aggregated 1GbE SMB Sequential Throughput 64KBRead MBs/Write MBs451 / 451
Aggregated 1GbE SMB Sequential Throughput via Encrypted Shared Folder 64KBRead MBs/Write MBs451 / 451
SpecsDS1821+

Specification:
SpecsValue
CPU-Model AMD Ryzen V1500B
CPU Architecture 64-bit
CPU Frequency 4-core 2.2 GHz
Hardware Encryption Engine (AES-NI)
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)
Notes The specifications vary depending on system configuration and memory size.
Drive Bays 8
Maximum Drive Bays with Expansion Unit 18 (DX517 x 2)
M2-slots 2 (NVMe)
Maximum Single Volume Size* 108 TB
Hot Swappable Drive
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
USB 3.0 Port 4
eSATA Port 2
PCIe Expansion 1 x Gen3 x8 slot (x4 link)
Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm
Weight 6 kg
System Fan 120 mm x 120 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 22.2 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
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 59.8 W (Access)
26.18 W (HDD Hibernation)
British Thermal Unit 204.05 BTU/hr (Access)
89.33 BTU/hr (HDD Hibernation)
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
Certification
  • FCC
  • CE
  • BSMI
  • EAC
  • CCC
  • KC
  • VCCI
  • RCM
Warranty 3 Years
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
Optional Accessories
  • DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G
  • Expansion Units: DX517
  • 2.5" SATA SSD: SAT5200
  • M.2 2280 NVMe SSD: SNV3400
  • 10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2
  • VisualStation: VS960HD/VS360HD
  • Surveillance Device License Pack
Maximum Internal Volume Number 64
Maximum iSCSI Target Number 128
Maximum iSCSI LUN 256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read / Write Cache (White Paper)
SSD TRIM
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 Protocol CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections 1,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Maximum Local User Accounts 2,048
Maximum Local Groups 256
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 16
Synology High Availability
Log Center
Syslog Events per Second 800
VMware vSphere 6 with VAAI
Windows Server 2016
Windows Server 2019
Citrix Ready
OpenStack
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
Antivirus by McAfee (Trial)
Central Management System
Synology Chat
Maximum Users 1,800
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80
exFAT Access (Optional)
Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users 150
Maximum Server Performance 1,484,000 emails per day, approx. 45GB
Media Server
DLNA Compliance
Moments
Facial Recognition
Subject Recognition
Auto Color & Rotate
Moments Select
Snapshot Replication
Maximum Snapshots per Shared Folder 1,024
Maximum of System Snapshots 65,536
Surveillance Station
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 Drive
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 Office
Video Station
Virtual Machine Manager
Recommended Virtual Machine Instances 8 (Learn more)
VPN Server
Maximum Connections 30
SpecsValue
SOFTWARE - 8/10
HARDWARE - 8/10
PERFORMANCE - 8/10
PRICE - 8/10
VALUE - 8/10


8.0
PROS
👍🏻Desktop Ryzen Powered Solution
👍🏻Dual NVMe M.2 cache
👍🏻PCIe Gen 3 x8 PCIe Equipped
👍🏻Great RAID Options (inc SHR)
👍🏻Excellent choice of Apps
👍🏻DDR4 ECC Memory up to 32GB
👍🏻Numerous Backup Software Options
👍🏻Huge Virtualization Support
👍🏻3yr Warranty and Extendable to 5yrs
CONS
👎🏻1Gbe Ports seem a bit limited now
👎🏻Shame it does not support 1/2 x DX1215
👎🏻NVMe SSDs cannot be used for RAW storage
 
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