Thecus N4820U-S User Manual
Reliable and Cost Ecient 4-bay 1U Rackmount NAS
for Small Business and SOHO
COMPLIANT
Secondary
System Syncing
Monitoring
Primary
Link Aggregation
1G<
1G (Gigabit)
+
1G (Gigabit)
PC
Data Flow
≤2G
HDD NAS
Dynamic Expansion
Flexible on
Capacity Expansion
Scale Out Capable
Antivirus
Cloud Backup
Client Side Backup
Secure VPN
Connection
Rapid Performance Great Scalability for Big Data Reliable Data Protection
Thecus System Failover
7 Modes of Link Aggregation
SATA III Supported
Scale Out: Dynamic Volume Expansion
Stackable for 5 Additional iSCSI Volumes
10TB HDD Supported
iSCSI Thin Provisioning Supported
Free Acronis & Antivirus
Real-time Remote Replication (RTRR)
Secure Remote Access with VPN
Dropbox/Amazon S3/ElephantDrive
Oce
RTRR
Home
www.Thecus.com
www.Thecus.com
Link AggregationAD Server AntivirusRAID Encryption Backup Solution VPN ServerSurveillance
N4820U
W: 432.5 mm
HDMI Output
DisplayPort Output
LAN Ports
Single Power Supply
Redundant
Power Supply
Audio
Two USB 3.0 Ports
Hardware Platform
Processor
•Intel® Celeron N3450 1.1GHz Burst to 2.2GHz Quad Core
System Memory
‧4GB DDR3, can upgrade to 8GB
•Memory Module Pre-installed: 4GB x1
•Total Memory Slots: 2
LAN Interface (PCI-e)
‧RJ-45x3: 10/100/1000 BASE-TX Auto MDI/MDI-X
‧WOL supported
USB Interface
‧USB 3.0 host port x2 (back x2)
‧USB 2.0 host port x1 (front x1)
LCM
‧Displays system status and information
Multimedia Output
‧DP/HDMI Output, Mic Input, Line Input, Line Output
Software Functions
RAID
‧RAID Modes: RAID 0, 1, 5, 6, 10 and JBOD
‧Auto-rebuild: Supported
‧Hot-swap: Supported
‧Hot Spare: Supported
‧RAID Expansion: Supported
‧RAID Volume Encryption: AES256bit
Disk
‧Power Management:
Available spin-down while idle setting
‧Bad Block Scan: Supported
‧SMART Info: Supported
‧SMART Test: Supported
‧Disk Roaming: Supports volume-based roaming to other
Thecus NAS (Require ThecusOS 7 64 bit)
‧Disk Wipe and Clone: Supported
‧Disk Security: Supported
Network
‧Conguration: Fixed IP address, dynamic IP address
‧Transport Protocols: TCP/IP/Appletalk
‧File Protocols: SMB/CIFS, HTTP/HTTPS, FTP, NFS v4, AFP
‧Link Aggregation:
Load balance, Failover, Balance-XOR, 802.3ad, Balance-
TLB, Balance-ALB, Broadcast
‧TCP/IP: IPV6 & IPV4
‧DDNS: Supported
‧SSH: Supported
‧UPnP: Supported
‧UPnP Port forwarding: Supported
‧Bonjour: Supported
‧VPN Server: Supported
‧vLan: Supported
System status
‧System Monitor: Monitoring CPU, Memory, Temperature,
fan, network utilization and protocols access user count
‧Syslog Management:
1. Send syslog to assigned location
2. Act as syslog server to receive log info from other
systems
Data Access
‧Client OS Support:
Windows XP and after
Windows Server 2003 and after
UNIX/Linux
Mac OS X
H:
44 mm
Disk Interface
‧4 x SATA for internal, support SATA II / SATA III hard disk
Power Supply
‧250W power supply (Single)
‧300W power supply (Redntdant)
Thermal/Fan control
•Thermal sensor on processor temperature
•System FAN speed controlled by temperature
System Clock
•Battery-backed up system clock
Power Management
•Auto power on after shutdown due to power loss
Buttons
‧Power, Reset, Mute, LCM Buttons
Buzzer
•Adjustable frequency alarm
‧FTP: Built-in FTP server with bandwidth control
‧Secure FTP:
Built-in secure FTP server with bandwidth control
‧TFTP:
Users can download and upload les with TFTP programs
‧Download Manager:
BT download (via Transmission module)
NZB download (via NZB module)
‧WebDAV/WebDAV SSL: Supported
‧Printer Server (IPP):
1. Supports USB printers
2. Supports a wide range of IPP printers
3. Client can manage print tasks (list/delete) via user
interface
Data Backup
‧Client Incremental Data Backup:
Acronis True Image (OEM version)
‧Client System Disaster Recovery:
Acronis True Image (OEM version)
‧Local folder/iSCSI Backup: Supported
‧Remote folder/iSCSI Backup: Supported
‧System Failover: Supported
‧Mac OS X Time Machine: Supported
‧Snapshot: Supported (Btrfs)
Block Level Access
‧iSCSI Target/Initiator: Supports Microsoft/Mac OS X/
Linux initiators and Thecus NAS targets
‧iSCSI Thin Provisioning: Supported
‧MPIO: Supported
‧MCS: Supported
‧Clustering: Supported
‧SCSI3 persistent group reservation: Supported
Power Management
‧Scheduled Power On/Off: Supported
Volume Management
‧Multiple RAID: Supported
‧Multiple File System Selectable: EXT4/XFS/Btrfs
Multimedia Support
‧iTunes Server: Supports AAC, MP3 w/ID3 tag and WAV
‧Media Server: Supports uPnP AV streaming protocol
(via Module)
User Authentication
‧Local User: Supports built-in user accounts
‧Local Group: Supports built-in user groups
‧Windows ADS: Supported
‧LDAP: Supported
LCM Buttons
(UP, DOWN, ENT, ESC)
Mute Button
Reset Button
Power Button
Locator Button
USB 2.0 Port
LED Indicator
Environment
‧Temperature: 0°C to 40°C (Operation)
-40°C to 70°C (Non-operation)
‧Humidity: 0 ~ 80 % R.H. (Non-condensing)
Chassis
‧1U 4bays Rack Mount
Dimensions (HxWxD)
‧44 x 432.5 x 578.9 (mm) / 1.73 x 17.03 x 22.79 (in)
Certicates
•CE/FCC/C-Tick/VCCI/BSMI
•RoHS
•WEEE
User Prole
‧Photo Center: Supported
‧File Center: Supported
‧APP Center: Supported
‧Surveillance Center: Supported
Cloud Backup
‧DropBox: Supported (via module)
‧ElephantDriver: Supported (via module)
‧Amazon S3: Supported
File System
‧Type : Journaling File System
‧Language Support: Unicode Support
‧Authorization (ACL): “Read”, “write”, or “deny” privileges to
individual users or groups in folders and sub-folders
‧User Quota: Supported (exclude Btrfs)
‧Folder Quota: Supported (Btrfs only)
Administration
‧User Interface:Web-based user interface supports
English, Traditional Chinese, Simplied Chinese,
Japanese, French, German, Italian, Spanish, Russian
‧Utility Program:
MS Windows Setup Wizard
Supports Windows XP and after
Mac OS X Setup Wizard
‧Email Notifications: Sends system messages via email to
the system administrator
‧DDNS: Supported
‧SNMP Trap: System information trap out
‧P2P Connection: Mail or FB account to register
Mobile Applications (iOS/Android)
‧Thecus Connect™ (Android):
Provides live up-to-date information of your NAS
‧Thecus Wizard™: Oers fast NAS Setup via your phone
‧Thecus T-OnTheGo™:
Upload, download and stream multimedia
‧Orbweb.me : Uploading, downloading, streaming
multimedia and webcam via P2P connection
Data Security
‧Antivirus: Supported
Capacity Expansion
‧Stackable: Can extend for 5 additional iSCSI volumes from
other Thecus NAS
‧Scale-Out: Dynamic Volume Expansion
Others
‧Recycled Bin: Supported
‧Local Display: X-Window via HDMI output
Email: sales@thecus.com
Ocial Website: www.thecus.com
For Windows NAS: wss.thecus.com
Reseller Center: www.thecus.com/reseller_index.php
NAS App Center: www.thecus.com/sp_app_center.php
Design and specications are subject to change without prior notice. Copyright © 2017 Thecus Technology Corp. All rights reserved.
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Forum: forum.thecus.com
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Blog: blog.thecus.com
Retail/Reseller Information
COMPLIANT
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