Home/Hard drives/External HDD Nas/Synology Disk Station DS1821+ / NAS server / 8 bays / SATA 6Gb/s / RAID 0, 1, 5, 6, 10, JBOD / RAM 4 GB / Gigabit Ethernet / iSCSI support | DS1821+

Synology Disk Station DS1821+ / NAS server / 8 bays / SATA 6Gb/s / RAID 0, 1, 5, 6, 10, JBOD / RAM 4 GB / Gigabit Ethernet / iSCSI support | DS1821+

Synology Disk Station DS1821+ NAS server 8 bays SATA DS1821+

Description
Features

Product Features

Accelerated performance
177% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor.
Maximize performance
Turbocharge HDD arrays by 20x or more without occupying drive bays using dual built-in M.2 slots for NVMe SSD cache.
Expansion made easy
Scale-up on-demand to 18 drives with two DX517 expansion units.
Includes everything to protect your data
Back up critical data to and from public clouds, Windows PCs and servers, virtual machines, and data on the NAS with Synology Active Backup suite, Hyper Backup, and Snapshot Replication.
Ready for 10GbE
Add in a 10GbE SFP+ or RJ-45 NIC to instantly increase network bandwidth based on your existing infrastructure.

Special Features

Accelerated performance
Maximize performance
Expansion made easy
Includes everything to protect your data
Ready for 10GbE

Product Specification

Device Type	NAS server
Host Connectivity	Gigabit Ethernet
Total Storage Capacity	0 GB
Installed Devices / Modules Qty	0 (installed) / 8 (max)
Width	34.3 cm
Depth	24.3 cm
Height	16.6 cm
Weight	6 kg ()
Processor / Memory	Processor / Memory
Processors Installed	AMD Ryzen Embedded V1500B 2.2 GHz
Number of Cores	Quad-Core
Max Supported Qty	1
RAM	4 GB (installed) / 32 GB (supported) - DDR4
Storage Controller	Storage Controller
Type	RAID
Interface Type	SATA 6Gb/s
RAID Level	RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD
Networking	Networking
Data Link Protocol	10Mb LAN, 100Mb LAN, GigE
Network / Transport Protocol	TCP/IP, PPTP, L2TP, iSCSI, FTP
Remote Management Protocol	SNMP, Telnet, SSH
Network Services Compatibility	Microsoft Active Directory (AD), File Level Security (ACLs), Microsoft CIFS, Network File System (NFS), FTP, Apple File Protocol (AFP), HTTPS, Web-based Distributed Authoring and Versioning (WebDAV), Calendaring Extensions to WebDAV (CalDAV)
Features	Firewall protection, hardware encryption, VPN support, LDAP support, wake on LAN (WOL), Syslog support, E-mail alert, High Availability, video server, web server, backup server, file sharing, anti-malware protection, Trivial File Transfer Protocol (TFTP) support, Access Control List (ACL) support, SSH support, iTunes server, Samba support, FTP server, surveillance station, PXE support, Apple Time Machine compatible, cloud backup, VPN Server, SFTP client, anti-virus protection, DLNA support
Encryption Algorithm	AES-NI
Compliant Standards	DLNA CERTIFIED
Expansion / Connectivity	Expansion / Connectivity
Expansion Bays	8 (total) / 8 (free) x hot-swap - 2.5" / 3.5"
Expansion Slots	1 x PCI Express 3.0 x8 Â¦ 2 (total) / 2 (free) x M.2 2280
Interfaces	4 x USB 3.2 Gen 1 - Type A Â¦ 4 x Ethernet 1000Base-T - RJ-45 Â¦ 2 x eSATA
Miscellaneous	Miscellaneous
Cables Included	2 x network cable
Features	Security lock slot (cable lock sold separately), wake on LAN, built-in 2 cooling fans, hardware encryption
Security Slot Type	Kensington security slot
Compliant Standards	FCC Class B certified, RoHS, BSMI Class B
Included Accessories	Hard drive security key, accessory pack
Power	Power
Power Device	Internal power supply
Voltage Required	AC 120/230 V (50/60 Hz)
Software / System Requirements	Software / System Requirements
Storage Operating System	Synology DiskStation Manager
Software Included	Drivers & Utilities
OS Required	Microsoft Windows 7 or later, Apple MacOS X 10.11 or later
Manufacturer Warranty	Manufacturer Warranty
Service & Support	Limited warranty - 5 years
Environmental Parameters	Environmental Parameters
Min Operating Temperature	0 Â°C
Max Operating Temperature	40 Â°C
Humidity Range Operating	5 - 95% (non-condensing)