TS-421U Specification

CPU Marvell 2.0 GHz
DRAM 1GB DDR3 RAM
Flash Memory 16MB
Hard Disk Drive 4 x 3.5" or 2.5" SATA HDD
NOTE:
  1. The system is shipped without hard disk drives.
  2. For the hard disk drive compatibility list, please visit www.qnap.com/compatibility
Hard Disk Tray 4 x hot-swappable and lockable tray
LAN Port 2 x Gigabit RJ-45 Ethernet port
LED Indicators USB, Status, HDD 1, HDD 2, HDD 3, HDD 4, LAN
USB 2 x USB 3.2 Gen 1 port, 2 x USB 2.0 port
Supports USB printer, disk, pen drive, USB hub, and USB UPS, etc.
eSATA 2 x eSATA port (Back)
Buttons System: Power button, USB one-touch-backup button, reset button
Alarm Buzzer System warning
Form Factor Rackmount
Dimensions 44(H) x 439(W) x 483(D) mm
1.73(H) x 16.97(W) x 19.02(D) inch
Weight Net weight: 6.7 Kg (14.77 lb)
Gross weight: 9.5 Kg (20.94 lb)
Power Consumption (W) Sleep mode: 12W
In operation: 33W
(with 4 x 500GB HDD installed)
Temperature 0-40˚C/ 32-104°F
Relative Humidity 5~95% RH non-condensing, wet bulb: 27˚C.
Power Supply Input: 100-240V AC, 50/60Hz, Output: 250W
Fan 2 x quiet cooling fan (4 cm, 12V DC)
참고: 시스템 성능 및 안정성을 유지하려면 QNAP 메모리 모듈만 사용하십시오. 두 개 이상의 메모리 슬롯이 있는 NAS 장치의 경우 동일한 사양의 QNAP 모듈을 사용하고 하드웨어 사용자 설명서를 참조하여 호환 가능한 QNAP 메모리 모듈을 설치하십시오.
경고: 지원되지 않는 모듈을 사용하면 성능이 저하되거나, 오류가 발생하거나, 운영 체제가 시작되지 않을 수 있습니다.
QNAP은 제조업체/공급기 전에 부품 또는 액세서리를 대체할 권리를 보유할 권리가 있습니다. 모든 교체는 엄격한 호환성 및 안정성 지침을 충족하여 원래의 호환성을 충족시키고 원래의 성능을 제공할 것입니다.
The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc.
제품 이미지는 예시용이며 실제 제품과 다를 수 있습니다. 모니터의 차이로 인해 제품 색상이 사이트에 표시된 색과 다르게 나타날 수도 있습니다.
디자인과 사양은 통지 없이 변경될 수 있습니다.
Operating System
QNAP Firmware v3.8
Disk Management
  1. Single Disk, JBOD, RAID 0 / 1 / 5 / 5+Hot Spare / 6 / 10
  2. Online RAID Capacity Expansion & Online RAID Level Migration
  3. Bad Block Scan & Hard Drive S.M.A.R.T.
  4. Global Hot Spare Drive
  5. RAID Recovery
  6. Bitmap Support
Supported Operating System
  1. Apple Mac OS 10.7 or later
  2. Linux and UNIX
  3. Microsoft Windows 7, 8, and 10
  4. Microsoft Windows Server 2003, 2008 R2, 2012, 2012 R2 and 2016
iSCSI (IP SAN)
  1. iSCSI Target with Multiple LUNS per Target (Up to 256 Targets/LUNs Combined)
  2. LUN Mapping & Masking
  3. Online LUN Capacity Expansion
  4. Supports SPC-3 Persistent Reservation
  5. Supports MPIO & MC/S
  6. iSCSI LUN Backup, One-time Snapshot, and Restore
  7. iSCSI Connection and Management by QNAP Finder (Windows)
  8. Stack Chaining Master: Up to 8 Virtual Disk Drives (via iSCSI Initiator)
Supported Web Browsers
  1. Microsoft Internet Explorer 10+
  2. Mozilla Firefox 8, 9, 10
  3. Apple Safari 4, 5
  4. Google Chrome
Web Administration
  1. AJAX-based User Interface
  2. Smart Fan Control
  3. Dynamic DNS (DDNS)
  4. SNMP (v2 & v3)
  5. Resource Monitor
  6. Network Recycle Bin for File Deletion via CIFS/SMB and AFP
  7. Automatic Cleanup
  8. File Type Filter
  9. Comprehensive Logs (Events & Connection)
  10. Syslog Client
  11. Firmware Live Update
  12. System Settings Backup and Restore
  13. Restore to Factory Default
  14. Mobile App Qmanager for Remote Monitoring
Multilingual Support
  1. Chinese (Traditional & Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, Turkish
Power Management
  1. Wake on LAN
  2. Internal Hard Drive Standby Mode
  3. Scheduled Power on/off (Max 15 Settings)
  4. Automatic Power on after Power Recovery
  5. USB and Network UPS Support with SNMP Management
File System
  1. Internal HDD: EXT3, EXT4
  2. External HDD: EXT3, EXT4, NTFS, FAT32, HFS+
Access Right Management
  1. User Accounts Management
  2. User Groups Management
  3. Network Shares Management
  4. Batch Users Creation
  5. Import/Export Users
  6. User Quota Management
  7. Local User Access Control for CIFS, AFP, FTP, and WebDAV
  8. Application Access Control for Photo Station, Music Station, Video Station, and Multimedia Station
  9. Subfolder Permissions Support for CIFS/SMB, AFP, FTP and Web File Manager
Networking
  1. TCP/IP (IPv4 & IPv6: Dual Stack)
  2. Dual Gigabit NICs with Jumbo Frame
    • Failover
    • Multi-IP Settings
    • Port Trunking/NIC Teaming (Modes: Balance-RR, Active Backup, Balance XOR, Broadcast, IEEE 802.3ad/Link Aggregation, Balance-TLB and Balance-ALB)
  3. Service Binding based on Network Interfaces
  4. Proxy Client
  5. DHCP Client, DHCP Server
  6. Protocols: CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSC
  7. TFTP Server with PXE Booting
  8. UPnP & Bonjour Discovery
  9. USB Wi-Fi Adapter Support
Domain Authentication Integration
  1. Microsoft Active Directory (AD)
  2. LDAP Server
  3. LDAP Client
  4. Domain Users Login via CIFS/SMB, AFP, FTP, and Web File Manager
Backup Solution
  1. Real-time Remote Replication (RTRR)
    • Works as Both RTRR Server & Client with Bandwidth Control
    • Real-time & Scheduled Backup
    • Encryption, Compression, File Filter, and Transfer Rate Limitation
  2. Block-level Remote Replication
    • Works as Both Rsync Server & Client with Bandwidth Control
    • Encrypted Replication between QNAP NAS Servers
  3. USB One Touch Backup (Import/Export)
  4. Desktop Backup by QNAP NetBak Replicator for Windows
  5. Apple Time Machine Support with Backup Management
  6. Data Backup to Multiple External Storage Devices
  7. Data Backup to Cloud Storage (Amazon S3, ElephantDrive, and Google Cloud Storage)
MyCloudNAS Service
  1. Private Cloud Storage and Sharing
  2. Free Host Name Registration (DDNS)
  3. Auto Router Configuration (via UPnP)
  4. MyCloudNAS Connect for Easy VPN Connection (Windows VPN Utility)
Security
  1. IP Filter & Policy-based Automatic IP Blocking
  2. Network Access Protection with Auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFS/SMB, AFP
  3. Encrypted Access: HTTPS, FTP with SSL/TLS (Explicit), SSH/ SFTP (admin only), Encrypted Remote Replication between QNAP NAS Servers (Rsync over SSH)
  4. CIFS Host Access Control for Shared Folders
  5. Antivirus Protection
  6. Importable SSL Certificate
  7. Instant Alert via E-mail, SMS, Beep
Storage Plug & Play
  • Windows Software: QNAP Finder
  • Create and Map Shared Folders
  • Create and Connect to iSCSI Target/LUN
Powerful All-in-one server
File Server
  1. File Sharing across Windows, Mac, and Linux/UNIX
  2. Windows ACL
  3. Advanced Folder Permission for SMB, AFP, FTP, Web File Manager
  4. Shared Folder Aggregation (CIFS/SMB)
  5. Web File Manager
    • Supports ISO Mounting (Up to 256 ISO files)
    • Direct File Viewing via Google Doc
    • Create and Send Download Links for Public File Sharing with Expiration Time and Password Protection
    • Mobile App: Qfile for File Browsing and Management
Photo Station
  1. Supported File Formats:
    • Photo: BMP, JPG, JPE, PNG, TGA, GIF, and more.
    • Video: API, MP4, and more.
  2. Image Slideshow with Background Music, Thumbnails, and Different Transition Effects
  3. Online Photo Editing by Pixlr Editor
  4. Geotagging Photos with Google Maps
  5. Slideshow Sharing (from Private Albums) with Password Protection
  6. Photo Publishing to Social Websites (Facebook, MySpace, Twitter, Plurk, and Blogger)
  7. Photo Sharing by Email
FTP Server
  1. FTP over SSL/TLS (Explicit)
  2. Max No. of Concurrent Connections: 256
  3. FXP Supported
  4. Passive FTP Port Range Control
  5. FTP Bandwidth & Connection Control
  6. Unicode Support
Music Station
  1. Plays or Shares Music Collections with Web Browser
  2. Automatic Classification via Media Library
  3. Supported audio format: MP3, FLAC, OGG, WAV, AIF, AIFF, and more.
    * DRM encryption format is not supported.
  4. Internet Radio (MP3)
  5. Up to 8 Music Alarms
Backup Server
  1. Remote Replication Server (over Rsync)
  2. Real-time Remote Replication to another QNAP NAS or FTP Server
  3. Apple Time Machine Support
  4. Windows Client Backup Application: QNAP NetBak Replicator
  5. Third Party Backup Software Support: Acronis True Image, CA BrightStor, ARCserve Backup, EMC Retrospect, Symantec Backup Exec, LaCie SilverKeeper, etc.
Video Station
  1. Web Video Sharing
  2. Video Categorization and Transcoding
    • Supported format: API, MP4, and more.
  3. Video upload
    • Up to 2048MB in size
    • Up to 320 minutes in length
    • Batch upload (max 50)
  4. Publish Videos to Facebook, Twitter, and Google+
Web Server
  1. HTTP/HTTPS Connections
  2. Supports WebDAV Connection
  3. Support Virtual Host (Max: 32)
  4. Importable SSL Certificate
Database Server
  1. Built-in MySQL Server
  2. Web-based Management via phpMyAdmin (QPKG)
Download Station
  1. PC-less BT, FTP, HTTP Download (up to 500 Tasks)
  2. BT Download
    • Supports TCP/UDP Tracker Protocol
    • Scheduled Download
    • Configurable Port Range
    • Bandwidth Control
    • UPnP NAT Port Forwarding
    • RSS Subscription and Download (Broadcatching)
    • Selectable Download Files
    • Configurable Saving Directory
  3. HTTP/ FTP Download
    • Bulk Download with Wildcard Settings
    • RapidShare Download Support
  4. Website Subscription Service: YouTube
  5. QNAP Download Management Software: QGet
    • For Both Windows & Mac OS
    • Manage the Download Tasks of Multiple QNAP NAS Remotely over LAN or WAN
Print Server
  1. Max No. of Printers: 3
  2. Supports Internet Printing Protocol
    • Print Job Display and Management
    • IP- and Domain Name-based Privilege Control
  3. Supports Apple Bonjour Printing
DJ Station
  1. Live Web Broadcasting of Music Playlists
  2. Share with Facebook Friends
Syslog Server
  1. Centralized Log Monitoring and Archiving
  2. Immediate Email Alerts
  3. Supports Log Filtering
Antivirus
  1. Protection against the Latest Known Viruses, Trojans, and Other Threats
  2. Free Virus Databases Update on Manual or Scheduled Basis
  3. Multiple Scan Tasks (Max: 64, Concurrent: 5) with Custom Folder Selection and Scheduled Scanning
  4. Email Notification upon Task Completion or Virus Detection
  5. Quarantines or Deletes Infected Files
RADIUS Server
  1. Centralized Account Management and Authentication for Network Access
  2. Supports PAP, EAP-TLS/PAP, and EAPTTLS/PAP Authentication
App Center
  1. Expands Application Services by Easy Online Installation with a Wide Variety of Official and Community QPKG Add-ons

 The actual available QPKGs may vary depending on the NAS platform.

VPN Server
  1. Secure Remote Access: PPTP & OpenVPN VPN services
  2. Remote Access to Other Resources on Local Network
  3. Max No. of Clients: 30
Surveillance Station
  1. Supports over 2,700 IP cameras
  2. Includes 2 Free Camera License
  3. Up to Max. 12 Camera Channels via additional License Purchase
  4. Intelligent Video Analytics (IVA) for Advanced Video Search
  5. Visual aids by E-maps
  6. Surveillance Client for Mac
  7. Mobile app: Vmobile (iOS & Android)
*Design and specifications are subject to change without notice.
TS-421U CD-ROM Ethernet cable x 2
Screw x 8 Handle x 2 Quick Installation Guide
Power cord Mount kit x 2 Hard disk lock
 
Flat head screw x 16 (for 3.5" HDD) Flat head screw x 12 (for 2.5" HDD)  

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