TerraMaster Intel Celeron J3455 Quad-core 1.5 GHz 4GB 10G LAN x 1,1G LAN x 2 (F5-422)
TerraMaster Intel Celeron J3455 Quad-core 1.5 GHz 4GB 10G LAN x 1,1G LAN x 2 (F5-422)
TerraMaster Intel Celeron J3455 Quad-core 1.5 GHz 4GB 10G LAN x 1,1G LAN x 2 (F5-422)
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TerraMaster Intel Celeron J3455 Quad-core 1.5 GHz 4GB 10G LAN x 1,1G LAN x 2 (F5-422)

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Crank up data access speed and security with the F5-422 5-Bay NAS Enclosure from TerraMaster. Designed for demanding applications such as video editing and streaming, as well as home entertainment use, this NAS enclosure features five 2.5/3.5" SATA drive bays supporting up to 90TB of storage space. A 1.5 GHz Intel Celeron quad-core processor and 4GB of RAM allow for snappy processing, complemented by a 10 GbE and two Gigabit Ethernet ports for fast access via link aggregation. Supporting transfer speeds up to 670 MB/s in RAID 0, the F5-422 also supports RAID 1, 10, 5, 6, JBOD, and Single modes. AES-NI encryption ensures data security, while a suite of data integrity features allow for easy backups, migration, and maintenance. You can even connect a host or backup location directly via two USB 3.1 Gen 1 Type-A ports.

Featuring an aluminum construction, the TerraMaster F5-422 boasts two 80mms fan to keep internals cool. Plus, a low maximum noise level of 19.8 dBA ensures quiet operation. Monitor status at a glance thanks to LED indicators on the front panel. Or, use the TNAS mobile app to access content and NAS settings on the go from devices running on iOS 8.2 or later or Android 6.0 or later. Utilizing the TOS operating system, this NAS enclosure is compatible with clients running on Windows, Mac, and Linux.

Configured for Performance
The TerraMaster F2-422 utilizes an Intel Celeron quad-core 1.5 GHz processor and is equipped with a 10 GbE and two Gigabit Ethernet ports for network aggregation. Furthermore, AES-NI hardware encryption and 4K transcoding allow this NAS array to achieve transfer speeds up to 651 MB/s in RAID 0. Designed for storage capacity and speed, this NAS is suitable for intense applications including video editing workflows.

Ten Times Standard Bandwidth
A 10GBASE-T RJ45 port offers 10 times the bandwidth of a standard Gigabit Ethernet port without the need for network cable replacement, improving overall network performance and efficiency.

Supports Multiple RAID Modes
Supporting RAID 0, 1, JBOD, and Single modes, the F2-422 can be used to speed up data access or increase data redundancy and security. Furthermore, RAID online expansion and migration are also supported, allowing easy expansion of storage space without data loss.

Multiple File Services
Supporting SMB/CIFS, NFS, AFP, FTP/SFTP, WebDAV, SMB, NFS, and iSCSI protocols, this NAS enclosure also offers cross-platform access between Windows, Mac, Linux, Android, and iOS devices.

Advanced File Systems
The TerraMaster F2-422 supports EXT 4 and Btrfs file systems, with the Btrfs file system providing advanced storage and Snapshot technology to prevent data damage and reduce maintenance costs. As well as improving data integrity, this enables flexible and efficient data protection and recovery.

Extensive Backup Options
Multiple backup tools such as AOMEI Backupper, Time Machine, Duple Backup, Centralized Backup, USB Copy, and Cloud Sync are included, allowing backup from PC to NAS, server to NAS, virtual machine to NAS, NAS to NAS, NAS to cloud storage, cloud storage to NAS, USB device to NAS, and NAS to USB device, addressing almost all possible data backup requirements. Additional features include multiple-version, incremental, and scheduled backups and a one-button restore function.

Easy Creation of Private Clouds
Using TNAS.online, DDNS, VPN, NextCloud, and OwnCloud, building a private cloud is easy, and the TNAS platform allows access from anywhere at any time. A self-built private cloud can effectively improve data management efficiency, reduce IT input costs, and enhance the privacy of sensitive data.

Supports Synchronization of Multiple Cloud Drives
The device supports data synchronization with a variety of popular cloud drives, including Google Drive, Amazon S3, Dropbox, OneDrive, pCloud, Yandex Disk, Alibaba Cloud OSS, Box, ElephantDrive, Koofr, MegaDisk, Nextcloud, and OpenDrive. Simply select the appropriate synchronization directory and policy.

Powerful Multimedia Management
Emby and Plex multimedia servers are supported for easier, more unified management of photos, videos, and music. With the powerful multimedia management functions of the Emby or Plex multimedia servers, your NAS array can be developed into a home multimedia entertainment center with a broad range of functions, allowing classification of media for better management, promotion of your favorite multimedia sources, and the creation of any number of albums to be stored in organized directories for convenience. Play stored content on almost any multimedia player including your phone, tablet, Roku, Apple TV, Google Chromecast, Amazon Fire TV, or smart TV. Streaming live TV to any device, managing a DVR, and developing a video library are also supported. Once a user is logged in, they can play personal multimedia on any device, without any restrictions of IP address.

4K HD Video Transcoding
DLNA protocol compatibility, the TerraMaster's Multimedia Server functionality, and a powerful processor mean your NAS array allows for real-time hardware 4K transcoding streaming to multimedia players that do not support HD format, such as computers, smart TVs, set-top boxes (STBs), and games consoles. Please note, this enclosure supports a maximum size of 4K H.264/H.265 at 8 bits and 30 fps.

Multiple Download Tools
Various download tools are supported, including Aria2, qBittorrent, and Transmission, facilitating easy management of file transmission and rapid and convenient movie downloading.

Integrated Mobile APP
TNAS mobile, the mobile application developed by TerraMaster for TerraMaster NAS users, allows access to all the functions and contents of your NAS enclosure, including file browsing, favorites, photo, music, video, and album backup, upload and download task management, multimedia playback, remote waking, and TNAS remote settings.

Expandable Storage Space
Mount an iSCSI LUN, NFS remote folder, or SMB remote folder for simple expansion of your storage space, whether in the file server, VMware VM, Hyper-V VM, or existing TNAS device.

Enterprise Applications
This device supports various enterprise applications to meet variety of business needs. Use the TerraMaster F2-422 as an AD domain, LDAP, VirtualBox VM, VPN Server, proxy server, DNS server, or a web server.

Privilege Management
The TOS operating system offers robust privilege management functionality. Access permissions are set for users, user groups, and folders respectively, along with associated storage limits. This function supports AD domain and LDAP, permitting the addition of domain users to the NAS array without requiring the creation of additional users or user groups, reducing the workload for network administrators.

Multilayer Safety Protection
Protect your enterprises or individual users from malicious network attacks putting data at risk. As well as supporting SSL encryption, firewalls, Anti-DoS attacks, and account protection, this NAS enclosure also offers a special advanced security mode to increase the overall device security level.

One Machine, Multiple Systems
VirtualBox enables several systems to run simultaneously on the TNAS platform, including Windows, Linux, UNIX, and Android Virtual Machines. It also allows the connection and management of VMs through a browser, facilitating the execution of multiple different server applications simultaneously to lower costs and satisfy enterprise needs. Docker hub allows download of tens of thousands of applications from around the world, with easy importing and exporting to Docker containers and the ability to set access rights. Other advantages include convenient installation, mobility, and high efficiency.

Hundreds of Popular Free APPs
The TerraMaster application center provides hundreds of free applications across a wide range of categories such as backup tools, security apps, commerce, utilities, multimedia, and development tools. These include WordPress, MyWebSQL, Apache, Mail Server, CRM, Web Server, phpMyAdmin, MariaDB, Antivirus, Git, Go, Java, MyBB, Python, and SVN.

Standard App Development Environment
TerraMaster provides developers with a standardized application development environment, and an application packaging tool with an extensive user guide. Any developer can develop their own applications to run on the TOS system, and these can be shared with other users or uploaded to the TerraMaster application center as desired.

USB 3.1 Gen 1
USB 3.1 Gen 1 features a maximum throughput of 5 Gb/s and is synonymous with USB 3.2 Gen 1 and USB 3.0.


  • 5 x 2.5/3.5" SATA Drive Bays
  • 1.5 GHz Intel Celeron J3455 Quad-Core
  • 4GB of RAM
  • 1 x 10 GbE & 2 x Gigabit Ethernet Ports
  • 2 x USB 3.0/3.1 Gen 1 Type-A Ports
  • RAID 0. 1. 5, 6, 10, JBOD & Single Modes
  • Transfer Speeds up to 670 MB/s
  • AES-NI Encryption
  • Supports TNAS Mobile App
  • TOS Operating System

Technical Specifications

Processor Model Intel® Celeron® J3455
Processor Architecture X.86 64-bit
Processor Frequency Quad Core 1.5GHz (Max burst up to 2.3GHz)
CPU Single-Core Score /
Hardware Encryption Engine
Hardware Transcoding Engine H.264, H.265, MPEG-4, VC-1;maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60
System Memory 4GB
Pre-installed Memory module 4GB (2 x 2GB)
Total Memory Slot Number 1
Maximum Supported Memory /
Note TerraMaster reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Disk Slot Number 5
Compatible Drive types 3.5" SATA HDD
2280 M.2 NVMe Slot Number /
Maximum Internal Raw Storage Capacity 100 TB (20TB x5) (Capacity may vary by RAID types)
Drive Hot Swap
Note  . Hard drive vendors will release their latest models of hard drives, and Maximum internal raw storage capacity may be adjusted accordingly.
. The maximum single volume size is not directly related to the maximum raw capacity.
File System  
Internal Drive Btrfs, EXT4
External Drive EXT3, EXT4, NTFS, FAT32, HFS+
External Ports  
RJ-45 1GbE Network Jack 2
RJ-45 2.5GbE Network Jack /
RJ-45 10GbE Network Jack 1
 SFP+ 10GbE Network Jack /
USB3.0 Host Port 2
USB2.0 Host Port /
PCIe Slots /
M.2 2280 NVMe Slot /
Size (H*W*D) 227 x 225x 136 mm
Packaging Size (H*W*D) 300 x 275 x 186  mm
Weight 3.6 kg
System Fan 80 x 80 x 25mm  2PCS
Fan Mode Smart, High speed, Middle speed, Low speed
Noise Level 27.4 dB(A) (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in idle state) 
Power Supply 90W
Redundancy Power Supply /
AC Input Voltage 100V - 240V AC
Current Frequency 50/60 Hz, Single frequency
Power Consumption 45W(Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in read/write state) 
15 W (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in hibernation)
Limited warranty 2 years
Certificate FCC, CE, CCC, KC
Environment RoHS, WEEE
Working Temperature 0°C  ~ 40°C (32°F ~ 104°F)
Storage Temperature -20°C ~ 60°C (-5°F ~ 140°F)
Relative Humidity  5% ~ 95% RH
Package Contents  
  Host unit (x1)
Power cord (x1)
Power Adapter(x1)
RJ-45 network cable (x1)
Quick Installation Guide (x1)
Limited Warranty Note(x1)
Screws(a few)
TOS Features  
OS Supported  
Supported Client OS Windows OS, Mac OS, Linux OS
Supported Web Browsers Google Chrome 97.0.xxxx, Mozilla Firefox 9.3,Apple Safari 12.1 ; Microsoft Edge 99.0.xx or later version.
Supported mobile OS iOS12.0, Android 9.0 or later version
Storage Management  
Supported RAID Types TRAID, Single, JBOD, RAID 0, RAID 1, RAID5, RAID 6, RAID 10
Maximum Internal Volume Number 256
Maximum iSCSI Target 128
Maximum iSCSI LUN 256
Volume Expansion with Larger HDDs TRAID, RAID 1,RAID5,RAID 6,RAID10
Volume Expansion by Adding a HDD TRAID, RAID5,RAID6
RAID Migration
SSD Cache
Hot Spare
Hard Drive S.M.A.R.T.
Seagate IHM
NVRAM write cache(BBU-protected) /
Shared Folder Snapshot
LUN Snapshot /
File Services  
Maximum Concurrent SMB/AFP/FTP/SFTP Connections 500
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Account & Shared Folder  
Maximum local user's account number 2048
Maximum local group number 512
Maximum shared folders number 512
Maximum shared folders syncing tasks 8
Rsync Backup
Duple Backup
Centralized Backup
USB  Backup
Cloud Sync
Time Machine Backup
File System Snapshot
TFM Backup
Link Aggregation /
DLNA Compliance
VPN Client
VPN Server
Proxy Client
Proxy Server /
UPnP/Bonjour Discovery
TNAS.online Remote Access
Access Right Management  
Batch users creation /
Import/Export users /
User Quota Managerment
Local user access control for CIFS/SAMBA and FTP
Domain Authentication  
AD Domain
LDAP Client
LDAP Server /
Firewall Protection
Account Auto-block Protection
AES Volume and Shared Folder Encryption
Importable SSL certificate
Instant Alert via email, Desktop Notification, Beep
RSA 2048 EncryptionTOS 5.0  
PAM (Pluggable Authentication Modules)
OTP AuthenticationTOS 5.0
HyperLock File SystemTOS 5.0
Power Managerment  
Power Resume
Scheduled Power On/Off
Wake up On LANWOL
UPS Supported
Multi-window, Multi-task System Management
Custom Desktop
Control Panel
Resource Monitor
OS UI Language English,German, French, Spanish, Italian, Magyar, Chinese,Japanese,KoreanTurkish, Portuguese, Russian
Application Center
iSCSI Target
Terra Photos
Duple Backup
Centralized Backup
USB Backup
VPN Server
Aria 2
Terra Search
Web Server
Clam Antivirus
Multi Media Server
Plex Media Server
Docker Manager