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 16 GB DDR4 memory expansion for DS3622xs+, DS2422+ Amazon UK UK 10.68 OFF (WAS 378) [LINK]
Synology DS423 4 Bay Desktop NAS: Efficient Data Storage and Backup Amazon UK UK 4.23 OFF (WAS 375) [LINK]
Synology - DDR4 - module - 16 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 44.19 OFF (WAS 423) [LINK]
Synology - DDR4 - module - 8 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 17.87 OFF (WAS 406) [LINK]
Synology DS224+ 2 Bay NAS Desktop: Efficient Storage Solution Amazon UK UK 45.65 OFF (WAS 487) [LINK]
Synology - DDR4 - module - 16 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 260.92 OFF (WAS 704) [LINK]
Synology 6 bay 2.5" NAS DS620slim (Diskless) Amazon UK UK 10.93 OFF (WAS 473) [LINK]
Synology - DDR4 - module - 32 GB - DIMM 288-pin - 2666 MHz / PC4-21300 - 1.2 V - Amazon UK UK 7.22 OFF (WAS 594) [LINK]
Synology Disk Station DS620slim - NAS server - 6 bays - SATA 6Gb/s - RAID 0, 1, Amazon UK UK 15.23 OFF (WAS 527) [LINK]
Synology DS223j 2-Bay Diskstation NAS (Realtek RTD1619B 4-Core 1.7 GHz 1GB DDR4 Amazon UK UK 92.9 OFF (WAS 623) [LINK]
Synology DS223 8TB 2 Bay Desktop NAS Solution installed with 2 x 4TB Western Dig Amazon UK UK 11.6 OFF (WAS 565) [LINK]
Synology 16 Channel NVR Deep Learning Video Analytics DVA1622 with HDMI Video Ou Amazon UK UK 4.35 OFF (WAS 724) [LINK]
Synology RackStation RS822+ Reliable data management for remote and branch offic Amazon UK UK 166.88 OFF (WAS 967) [LINK]
Synology DS725+ 12TB (Synology HAT33) 2 bay Plus series with Ryzen R1600, 4GB Ra Amazon UK UK 148.78 OFF (WAS 999) [LINK]
Synology DS225+ 2-Bay Diskstation NAS (Intel Celeron J4125 Quad-Core, 2 GB Non-E Amazon UK UK 56.58 OFF (WAS 979) [LINK]
SYNOLOGY Diskstation DS1825+ Amazon UK UK 5 OFF (WAS 1045) [LINK]
Synology 8-Bay Expandable NAS Kit, DS1825+ AMD RyzenCPU with 8GB Memory, 2.5GbE Amazon UK UK 53.81 OFF (WAS 1261) [LINK]
Synology 4-Bay RackStation RS822RP+ (Diskless) Amazon UK UK 13.64 OFF (WAS 1256) [LINK]
Synology DS425+ 16TB (Synology HAT53) 4 bay desktop NAS Amazon UK UK 20.53 OFF (WAS 1424) [LINK]
Synology RS1221RP+8 bay NAS 2.4Ghz Quadcore CPU Amazon UK UK 14.33 OFF (WAS 1456) [LINK]
Synology RX1217 - Storage enclosure - 12 bays (SATA-600) - rack-mountable - 2U Amazon UK UK 25.28 OFF (WAS 1474) [LINK]
Synology RackStation RS822+ 4-Bay 16TB Bundle with 4X 4TB Seagate IronWolf Amazon UK UK 23.62 OFF (WAS 1937) [LINK]
Synology RS2423+ 12 Bay Rack NAS Storage Solution Amazon UK UK 53.7 OFF (WAS 1973) [LINK]
Synology RX1217RP - Storage enclosure - 12 bays (SATA-600) - rack-mountable - 2U Amazon UK UK 37.06 OFF (WAS 2162) [LINK]
Synology SA3400D NAS/storage server Rack (2U) Ethernet LAN D-1541 Amazon UK UK 163.52 OFF (WAS 2831) [LINK]
Synology RackStation RS822+ 4-Bay 48TB Bundle with 4X 12TB Seagate IronWolf Amazon UK UK 34.05 OFF (WAS 2763) [LINK]
Synology DS425+ 80TB (Synology HAT53) 4 bay desktop NAS Amazon UK UK 197.72 OFF (WAS 3285) [LINK]
Synology Disk Station DS3622XS+ - NAS server - 12 bays - SATA 6Gb/s - RAID 0, 1, Amazon UK UK 14 OFF (WAS 3167) [LINK]
Synology 12 bay RackStation RS3621xs+ (Diskless) Amazon UK UK 614.73 OFF (WAS 5209) [LINK]
Synology SA3200D - NAS server - 12 bays - rack-mountable - RAID 0, 1, 5, 6, 10, Amazon UK UK 91.43 OFF (WAS 9690) [LINK]
Synology WRX560 - Dual-Band Wi-Fi 6 Router, 2.5Gbps Ethernet, VLAN segmentation, Amazon usa USA 12.95 OFF (WAS 243) [LINK]
Synology WRX560 Wi-Fi 6 Router + ARRIS SURFboard SB8200 DOCSIS 3.1 Cable Modem Amazon usa USA 13.39 OFF (WAS 399) [LINK]
Synology 2-Bay NAS DS225+ (Diskless) Amazon usa USA 8.17 OFF (WAS 416) [LINK]
Sparepart: Synology PSU Redundant Power Module 550W, Applied Models: FS3410, W12 Amazon usa USA 12.82 OFF (WAS 492) [LINK]
Synology 6 bay 2.5" NAS DS620slim (Diskless) Amazon usa USA 12.17 OFF (WAS 512) [LINK]
Synology WiFi Router Bundle with WRX560 and RT6600ax Models Amazon usa USA 12.95 OFF (WAS 573) [LINK]
Synology DiskStation DS725+ 2-Bay 3.5" Diskless 1 x 1GbE + 1 x 2.5GbE, NAS (Scal Amazon usa USA 446.3 OFF (WAS 1169) [LINK]
Synology DiskStation DS425+ NAS 4-Bay 3.5" Diskless, Intel Celeron J4125 1 x 1Gb Amazon usa USA 86.26 OFF (WAS 850) [LINK]
Synology Deep Learning NVR DVA1622 with 2 Bays Amazon usa USA 24.4 OFF (WAS 925) [LINK]
Synology 8 Bay DiskStation DS1825+ (Diskless) Amazon usa USA 35.07 OFF (WAS 1240) [LINK]
Synology DS925+(2X 2.5GbE Ports, Ryzen V1500B, 4GB RAM) 4-Bay 16TB Bundle with 4 Amazon usa USA 91.04 OFF (WAS 1590) [LINK]
Synology Expansion Unit RX1217 12-bay, 2 U, RX1217 (12-bay, 2 U 50Hz to 60Hz, si Amazon usa USA 59.25 OFF (WAS 1682) [LINK]
Synology 8-Bay DiskStation DS1823xs+ (Diskless) Amazon usa USA 8 OFF (WAS 1801) [LINK]
Synology DS1525+(2X 2.5GbE Ports, Ryzen V1500B, 8GB RAM) 5-Bay 20TB Bundle with Amazon usa USA 103.08 OFF (WAS 1902) [LINK]
Synology 12-Bay RackStation RS2423+ (Diskless) Amazon usa USA 39.37 OFF (WAS 2090) [LINK]
Synology RX1217RP 12-Bay 2U Rack Mount Storage Expansion Unit with 2x Power Supp Amazon usa USA 67.95 OFF (WAS 2199) [LINK]
Synology 12 Bay DiskStation DS3622xs+ (Diskless) Amazon usa USA 54.33 OFF (WAS 3158) [LINK]
Synology 12 bay RackStation RS3621RPxs (Diskless) Amazon usa USA 8.06 OFF (WAS 3547) [LINK]
Synology 12 Bay Unified Controller UC3200 (Diskless) Amazon usa USA 48.03 OFF (WAS 7184) [LINK]
Synology 12-Bay Rackmount NAS SA3410 (Diskless) Amazon usa USA 38.31 OFF (WAS 7041) [LINK]
Synology 24 Bay FlashStation FS3600 (Diskless), 24-Bay; 16GB DDR4 Amazon usa USA 458.46 OFF (WAS 8500) [LINK]
Synology 24 Bay NAS FlashStation FS6400 (Diskless) Amazon usa USA 153.66 OFF (WAS 14546) [LINK]
Synology High Density HD6500 Amazon usa USA 5.67 OFF (WAS 20648) [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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