Synology DiskStation DS1821+
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Synology Virtual Machine Manager preinstalled.
Powerful, advanced and highly scalable enterprise-class NAS storage designed for small and medium businesses and professional users who require high capacity and reliable data protection. The server has 8 drive bays, expandable to 18 bays using DX517 expansion units, allowing you to store up to 128 TB of data. Hot-swappable drives are supported to minimize downtime. The model supports 3.5" drives with SATA 2 and SATA 3 interfaces, and is also equipped with two M.2 slots for installing SSD cache.
The RAID configuration has wide storage options, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD, SHR and Basic. Synology DiskStation DS1821+ is equipped with four Gigabit LAN ports, allowing you to set up channel aggregation and increase the overall network throughput. Additionally, four USB 3.2 Gen 1 ports are available for connecting external devices and two eSATA ports for connecting expansion modules and additional drives. The built-in quad-core AMD Ryzen V1500B processor with a frequency of 2.2 GHz is supported by 4 GB of DDR4 RAM, expandable up to 32 GB. The proprietary DSM OS includes an extensive set of server functions: from a web and FTP server to a multimedia (DLNA, iTunes, uPnP), mail server and video surveillance system with support for up to 40 IP channels.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Synology 2026 - new arrivals, bestsellers, and the most relevant models Synology.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Synology 2026 - new arrivals, bestsellers, and the most relevant models Synology.
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Synology DiskStation DS1821+ NAS/storage server Tower Ryzen Embedded V DS1821+ | £1,438.73 |  | |||
| £1,440.01 |  | ||||
| £1,468.81 |  | ||||
Series Synology DiskStation (desktop)Compare using chart →
without drive, connection: 3.5" 2, M.2 2, LAN: 2 ports, 1 Gbps, 2.5 Gbps, CPU: AMD Ryzen R1600, 2 cores (4 threads), 2.6 GHz, TurboBoost 3.1 GHz, mail server, USB-C
without drive, connection: 3.5" 4, M.2 2, LAN: 2 ports, 2.5 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server, USB-C
without drive, connection: 3.5" 2, LAN: 2 ports, 1 Gbps, 2.5 Gbps, CPU: Intel Celeron J4125, 4 cores (4 threads), 2 GHz, TurboBoost 2.7 GHz, mail server
without drive, connection: 3.5" 1, LAN: 1 port, 1 Gbps, CPU: Realtek RTD1619B, 4 cores (4 threads), 1.7 GHz
without drive, connection: 3.5" 4, M.2 2, LAN: 2 ports, 1 Gbps, 2.5 Gbps, CPU: Intel Celeron J4125, 4 cores (4 threads), 2 GHz, TurboBoost 2.7 GHz, mail server
without drive, connection: 3.5" 5, M.2 2, PCI-E 1, LAN: 2 ports, 2.5 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server, USB-C
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: Realtek RTD1619B, 4 cores (4 threads), 1.7 GHz
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: RealtekRTD1619B, 4 cores (4 threads), 1.7 GHz, mail server
without drive, connection: 3.5" 2, LAN: 2 ports, 1 Gbps, CPU: Intel Celeron J4125, 4 cores (4 threads), 2 GHz, TurboBoost 2.7 GHz, mail server
without drive, connection: 3.5" 4, M.2 2, LAN: 2 ports, 1 Gbps, CPU: Intel Celeron J4125, 4 cores (4 threads), 2 GHz, TurboBoost 2.7 GHz, mail server
without drive, connection: 3.5" 8, M.2 2, PCI-E 1, LAN: 1 Gbps, 10 Gbps, CPU: AMD Ryzen V1780B, 4 cores (8 threads), 3.35 GHz, TurboBoost 3.6 GHz, mail server
without drive, connection: 3.5" 8, M.2 2, PCI-E 1, LAN: 2 ports, 2.5 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server, USB-C
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: Realtek RTD1296, 4 cores (4 threads), 1.4 GHz, mail server, AirPlay
without drive, connection: 3.5" 8, M.2 2, PCI-E 1, LAN: 4 ports, 1 Gbps, CPU: AMD RyzenTM V1500B, 4 cores (8 threads), 2.2 GHz, mail server
without drive, connection: 3.5" 2, M.2 2, LAN: 2 ports, 1 Gbps, CPU: AMD Ryzen R1600, 2 cores (4 threads), 2.6 GHz, TurboBoost 3.1 GHz, mail server
without drive, connection: 3.5" 4, LAN: 2 ports, 1 Gbps, CPU: Realtek RTD1619B, 4 cores (4 threads), 1.7 GHz, mail server
without drive, connection: 2.5" 6, LAN: 2 ports, 1 Gbps, CPU: Intel Celeron J3355, 2 cores (2 threads), 2 GHz, TurboBoost 2.5 GHz, transcoding, mail server, AirPlay
without drive, connection: 3.5" 4, M.2 2, LAN: 2 ports, 1 Gbps, CPU: Intel Celeron J4025, 2 cores (2 threads), 2 GHz, TurboBoost 2.9 GHz, mail server, AirPlay
without drive, connection: 3.5" 6, M.2 2, LAN: 4 ports, 1 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: Intel Celeron J3355, 2 cores (2 threads), 2 GHz, TurboBoost 2.5 GHz, transcoding, mail server
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We recommendCompare using chart →
without drive, connection: 3.5" 4, PCI-E 2, LAN: 2 ports, 2.5 Gbps, CPU: AMD Ryzen Embedded V1500B, 4 cores (8 threads), 2.2 GHz, USB-C
rack, without drive, connection: 3.5" 4, PCI-E 1, LAN: 2 ports, 2.5 Gbps, CPU: 4 cores (4 threads), 2 GHz, TurboBoost 2.9 GHz, mail server
without drive, connection: 3.5" 5, M.2 2, PCI-E 1, LAN: 4 ports, 1 Gbps, CPU: AMD Ryzen R1600, 2 cores (4 threads), 2.6 GHz, TurboBoost 3.1 GHz, mail server
rack, without drive, connection: 3.5" 4, M.2 2, LAN: 2 ports, 2.5 Gbps, CPU: Marvell OCTEON TX2 CN9130 / CN9131 (ARM), 4 cores (4 threads), 2.2 GHz, mail server, SFP+
rack, without drive, connection: 3.5" 12, PCI-E 2, LAN: 4 ports, 1 Gbps, 10 Gbps, CPU: Intel Xeon D-1541, 8 cores (16 threads), 2.1 GHz, TurboBoost 2.7 GHz, mail server
without drive, connection: 3.5" 1, LAN: 1 port, 1 Gbps, CPU: ARM Cortex-A55, 4 cores (4 threads), 1.8 GHz, mail server
without drive, connection: 3.5" 5, 2.5" 4, LAN: 2.5 Gbps, 10 Gbps, CPU: AMD Ryzen Embedded V1500B, 4 cores (8 threads), 2.2 GHz, ZFS, transcoding, mail server, Chromecast, USB-C
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: ARM Cortex-A55, 4 cores (4 threads), 1.8 GHz
without drive, connection: 3.5" 2, M.2 2, LAN: 1 port, 2.5 Gbps, CPU: Intel N100, 4 cores (4 threads), TurboBoost 3.4 GHz, HDMI, USB-C
without drive, connection: 3.5" 6, M.2 2, PCI-E 1, LAN: 2 ports, 10 Gbps, CPU: Intel i5-1235U, 10 cores (12 threads), TurboBoost 4.4 GHz, HDMI, card reader, Thunderbolt
without drive, connection: 3.5" 4, M.2 2, PCI-E 2, LAN: 2 ports, 2.5 Gbps, CPU: Intel Pentium Gold G7400, 2 cores (4 threads), 3.7 GHz, ZFS, mail server, HDMI, USB-C
without drive, connection: 2.5" 4, LAN: 2 ports, 2.5 Gbps, CPU: Intel Celeron J6412, 4 cores (4 threads), 2 GHz, TurboBoost 2.6 GHz, mail server, HDMI