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Product Name
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Synology DiskStation DS1825+
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Product Type
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8-Bay Network Attached Storage (NAS)
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Operating System
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Synology DiskStation Manager (DSM)
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Intended Use
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Centralized storage, file sharing, backup, virtualization, surveillance, and private cloud
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Processor
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AMD Ryzen V1500B
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CPU Architecture
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64-bit
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CPU Cores
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4
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CPU Threads
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8
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CPU Clock Speed
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2.2 GHz
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Hardware Encryption
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AES-NI Hardware Encryption Engine
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Installed Memory
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8 GB DDR4 ECC SODIMM
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Memory Slots
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2
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Maximum Memory
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32 GB (2 × 16 GB DDR4 ECC SODIMM)
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Drive Bays
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8 × 3.5"/2.5" SATA HDD/SSD
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M.2 Slots
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2 × M.2 2280 NVMe SSD (Cache/Storage Pool Support)
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Hot-Swappable Drives
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Yes (SATA drive bays)
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Maximum Drive Bays
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18 (with two DX525 expansion units)
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Maximum Raw Capacity
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Up to 432 TB (using expansion units and 24 TB drives)
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Supported RAID Levels
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Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
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Maximum Single Volume Size
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Up to 200 TB (requires 32 GB RAM)
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Maximum Internal Volumes
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32
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File Systems (Internal)
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Btrfs, ext4
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File Systems (External)
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Btrfs, ext4, ext3, FAT32, exFAT, NTFS, HFS+, APFS (read-only)
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SSD Cache
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Read/Write SSD Cache Supported
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SSD Storage Pool
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Supported
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SSD TRIM
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Supported
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Network Ports
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2 × 2.5GbE RJ-45 Ethernet
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Link Aggregation
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Supported
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Network Failover
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Supported
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Optional Network Upgrade
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PCIe adapter support for 10GbE and up to 25GbE networking
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PCIe Expansion Slot
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1 × PCIe Gen3 x8 (x4 link)
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USB Ports
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3 × USB 3.2 Gen 1
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Expansion Ports
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2 × USB Type-C (for DX525 expansion units)
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Sequential Read Performance
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Up to 2,239 MB/s
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Sequential Write Performance
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Up to 1,573 MB/s
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Dimensions (H × W × D)
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166 × 343 × 243 mm
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Weight
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6.0 kg
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Cooling Fans
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2 × 120 mm
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Fan Modes
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Full Speed, Cool, Quiet
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Noise Level
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23.8 dB(A)
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Power Supply
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250 W Internal PSU
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Input Voltage
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100–240 V AC
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Power Frequency
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50/60 Hz, Single Phase
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Power Consumption (Access)
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60.1 W
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Power Consumption (HDD Hibernation)
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18.34 W
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Wake on LAN/WAN
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Supported
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Scheduled Power On/Off
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Supported
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Power Recovery
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Supported
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Front LED Brightness Control
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Supported
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Virtualization Support
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VMware vSphere, Microsoft Hyper-V, Citrix, OpenStack, Synology Virtual Machine Manager
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Backup Applications
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Active Backup Suite, Hyper Backup, USB Copy, Snapshot Replication, Cloud Sync
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File Management
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Synology Drive, File Station, Hybrid Share
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Office Collaboration
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Synology Office, Chat, Calendar, MailPlus
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Photo Management
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Synology Photos
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Container Support
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Container Manager (Docker)
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Web Services
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Web Station, DNS Server, VPN Server, Git Server, MariaDB
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Surveillance
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Surveillance Station, ONVIF support, up to 40 IP cameras
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Security Features
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Firewall, HTTPS, SSL/TLS, Two-Factor Authentication (2FA), Security Advisor, Automatic IP Blocking, Snapshot Protection
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Supported Mobile Apps
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DS File, DS Finder, Synology Drive, Synology Photos, Secure SignIn
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Ideal Applications
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File Server, Backup Server, Virtualization Storage, Video Surveillance, Private Cloud, Multimedia Storage, Disaster Recovery, Team Collaboration
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