- Entry-level rackmount NAS supporting snapshot technology

FAST STORAGE WITH OUTSTANDING COMPUTING POWER
- RS819 is a compact and scalable 4-bay rackmount NAS in a 1U form factor
- With snapshot technology support, RS819 brings business workgroups simple yet comprehensive solutions to data management, sharing, synchronization and backup

ULTIMATE FILE MANAGEMENT AND SHARING
- File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC
- Advanced search and filtering tools allow for easy organization and file sharing
- For complete compatibility, RS819 supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV

Btrfs: NEXT GENERATION STORAGE EFFICIENCY
- Btrfs file system introduces the most advanced storage technologies to meet the management needs of modern large scale businesses:
* Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders
* Snapshot Replication provides schedulable and storage capacity-saving data protection with 256 shared folder backups and 4,096 system-wide snapshots
* File or folder level data restoration makes data recovery fast and flexible
* Automatic file self-healing detects and recovers corrupted files without user intervention

DIGITAL ASSET PROTECTION
- Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes

ENGINEERED FOR RELIABILITY, BACKED BY SYNOLOGY
- RS819 is designed to reliably store your data and is backed by Synologys three-year hardware warranty
- An optional two-year extended warranty is available in select regions for up to five years of coverage

Hardware Specifications
CPU
- CPU Model: Realtek RTD1296
- CPU Architecture: 64-bit
- CPU Frequency: Quad Core 1.4 GHz
- Hardware Encryption Engine: Yes

MEMORY
- System Memory: 2GB DDR4

STORAGE
- Drive Bays: 4
- Maximum Drive Bays with Expansion Unit: 8
- Compatible Drive Type:
* 3.5" SATA HDD
* 2.5" SATA HDD
* 2.5" SATA SSD
- Maximum Internal Raw Capacity: 56TB (14TB drive ×4) (Capacity may vary by RAID types)
- Maximum Raw Capacity with Expansion Units: 112TB (56TB + 14TB drive ×4) (Capacity may vary by RAID types)
- Maximum Single Volume Size: 108TB
- Hot Swappable Drive: Yes

EXTERNAL PORTS
- RJ-45 1GbE LAN Port: 2 (with Link Aggregation / Failover support)
- USB 3.0 Port: 2
- eSATA Port: 1

FILE SYSTEM
- Internal Drives: Btrfs, EXT4
- External Drives: Btrfs, EXT4, EXT3, FAT, NTFS, HFS+, exFAT
* exFAT Access is purchased separately in Package Center

APPEARANCE
- Size (H×W×D): 44×478×327.5 mm
- Weight: 4.34 kg
- Rack Installation Support:
* 2-post 19" rack (direct mounting)
* 4-post 19" rack (Synology Rail Kit - RKM114/RKS1317)

OTHERS
- System Fan: 40×40 mm ×3 pcs
- Fan Speed Mode: Full-Speed Mode, Cool Mode, Quiet Mode
- Power Recovery: Yes
- Noise Level: 28.9 dB(A)
- Scheduled Power On/Off: Yes
- Wake on LAN/WAN: Yes
- Power Supply Unit / Adapter: 100W
- AC Input Power Voltage: 100V to 240V AC
- Power Frequency: 50/60 Hz, Single Phase
- Power Consumption:
* 28.31 W (Access)
* 10.1 W (HDD Hibernation)
- British Thermal Unit:
* 96.6 BTU/hr (Access)
* 34.46 BTU/hr (HDD Hibernation)

ENVIRONMENT TEMPERATURE
- Operating Temperature: 5C to 35C (40F to 95F)
- Storage Temperature: -20C to 60C (-5F to 140F)
- Relative Humidity: 5% to 95% RH

CERTIFICATION
- FCC, CE, BSMI, EAC, VCCI, CCC, RCM

DSM Specifications
STORAGE MANAGEMENT
- Maximum Internal Volume Number: 64
- Maximum iSCSI Target Number: 128
- Maximum iSCSI LUN: 256
- iSCSI LUN Clone/Snapshot, Windows ODX: Yes
- SSD TRIM: Yes
- 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 (with Expansion Unit)
- Global Hot Spare Supported RAID Type: Synology Hybrid RAID, RAID 1, RAID 5, RAID 6 (with Expansion Unit), RAID 10 (with Expansion Unit)

FILE SERVICES
- File Protocol: CIFS/AFP/NFS/FTP/WebDAV
- Maximum Concurrent CIFS/AFP/FTP Connections: 200
- Windows Access Control List (ACL) Integration: Yes
- NFS Kerberos Authenticatio: Yes

ACCOUNT & SHARED FOLDER
- Maximum Local User Accounts: 2048
- Maximum Local Groups: 256
- Maximum Shared Folder: 256
- Maximum Shared Folder Sync Tasks: 4

LOG CENTER
- Syslog Events per Second: 400

Add-on Packages
- Chat: Yes
- Maximum Users: 500
- Cloud Station Server: Yes
- Maximum Number of Concurrently Connected Devices: 200
- Maximum Number of Hosted Files (btrfs): 100.000
- Download Station: Yes
- Maximum Concurrent Download Tasks: 80
- exFAT Access (optional): Yes
- Media Server: Yes
- DLNA Compliance: Yes
- Moments: Yes
- Facial recognition: Yes
- Subject recognitio: Yes
- Snapshot Replication: Yes
- Maximum Snapshots per Shared Folder: 256
- Maximum of system snapshots: 4096
- Surveillance Station: Yes
- Maximum IP cam (Licenses required): 30 (including 2 Free License) (See All Supported IP Cameras)
- Total FPS (H.264):
* 900 FPS @ 720p (1280×720)
* 300 FPS @ 1080p (1920×1080)
* 240 FPS @ 3M (2048×1536)
* 150 FPS @ 5M (2591×1944)
* 110 FPS @ 4K (3840×2160)
- Total FPS (H.265):
* 900 FPS @ 720p (1280×720)
* 450 FPS @ 1080p (1920×1080)
* 360 FPS @ 3M (2048×1536)
* 250 FPS @ 5M (2591×1944)
* 180 FPS @ 4K (3840×2160)
- Total FPS (MJPEG):
* 300 FPS @ 720p (1280×720)
* 200 FPS @ 1080p (1920×1080)
* 130 FPS @ 3M (2048×1536)
* 80 FPS @ 5M (2591×1944)
- Synology Drive: Yes
- Recommended Number of Hosted Files: 100.000 (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 Connections for PC Clients: 200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
- Synology Office: Yes
- Maximum Users: 200
- Video Station: Yes
- Video Transcoding: Group 2
- VPN Server: Yes
- Maximum Connections: 20

Environment & Packaging
- Environment: RoHS Compliant
- Packaging Content:
1× Main Unit
1× Accessory Pack
1× AC Power Cord
1× Quick Installation Guide

- Optional Accessories:
* Surveillance Device License Pack
* 1× Expansion Unit: RX418
* VS360HD
* VS960HD
* Synology Rail Kit Sliding - RKS1317
* Synology Rail Kit Mounted - RKM114

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