SKU: F2-423


2 Bay NAS For SMB

TerraMaster F2-423

Designed for High Performance Requirements

The 2-Bay F2-423 is suitable for SMB users who need high-performance storage solutions. High performance means that users can easily handle high-load workflows, while multiple business-level backup solutions guarantee data safety and safeguard against the risk of data loss.

Excellent Performance

This is a high-performance storage solution that provides a virtual storage and database service for SMB users. It uses an Intel Celeron N5095 quad-core processor with 2.0 GHz and a maximum turbo of 2.9 GHz. It is integrated with a GPU graphics card and AES NI hardware encryption. In addition, it is equipped with two 2.5 GbE interfaces and a 4 GB DDR4 dual-channel memory (expandable up to 32 GB). Moreover, this storage solution is internally installed with 2 M.2 NVMe slots, which accelerate SSD caching and double the storage efficiency of your RAID.

Faster Application Response

The performance of the F2-423 surpasses that of previous generations, offering a 50% improvement that transforms the handling of high-load workflows. Moreover, is offers a 37% increase in file and photo retrieval speeds, a 35% increase in database response speeds, and a 40% increase in webpage PHP response speeds.

Higher Transmission Speed

The F2-423 is configured with two 2.5 GbE interfaces, supporting a 2.5 GbE high-speed network bandwidth. The linear data transmission speed can reach 283 MB/s (Seagate IronWolf 18TB x 2, RAID 0). Link Aggregation offers a network bandwidth up to 5 Gb, thereby providing a cost-effective solution for multi-user and high-concurrent file access.

Powerful Multimedia Service

With 4K video decoding capability, the F2-423 is compatible with uPnP/DLNA protocol and can stream videos to various multimedia devices, including computers, smart phones, media players and televisions, by using TerraMaster’s proprietary application Multimedia Server or the one from another third-party, to deliver users constant, reliable entertainment experiences.

Flexible Storage Configuration

The F2-423 supports various RAID types including Single/RAID 0/1 It offers online capacity expansion and online migration for RAID types. It supports the creation of multiple storage spaces, and ext 4 or BTRFS file systems can be selected in accordance with various business requirements. When used in conjunction with TerraMaster USB DAS devices, the F2-423 has the ability to flexibly expand storage capacity.

Professional Operating System

TNAS runs on TOS, a TerraMaster operating system developed based on Linux. Extensive research into the needs of various business users and the resultant continued evolution of multiple TOS generations has enabled it to integrate all-round professional storage management functions including network management, permission management, storage management, and resource monitoring via user-friendly, intuitive, and flat web interfaces. It also provides hundreds of free apps for the app market.

Across-Platform File Services

The ability of the F2-423 to support most file services (SMB, AFP, SFTP/FTP, iSCSI, NFS, and WebDAV) enables it to successfully address the across-platform file service needs of different network environments. Moreover, the F2-423 supports Windows AD domain and LDAP, thereby facilitating the incorporation of the existing IT environments of business users and improving management efficiency. The presence of permission management at the level of users, user groups, and file directories means that the F2-423 can satisfy the comprehensive requirements of business users for inter-departmental collaboration and data security.

Rich Backup Solutions

TOS can protect valuable data using visual user interfaces and trustworthy storage solutions thanks to its integration with multiple backup applications that can address backup needs in an array of circumstances.
Centralized Backup: Backup for servers, virtual machines, employee PCs, and file servers can be initiated at the TNAS end, thus facilitating the rapid restoration of data after incidents.
Duple Backup: In order to provide several offsite backup versions, Duple Backup provides advanced data protection by backing up files to another remote TNAS, file server, or cloud drive.
Snapshot: It is possible to take continuous snapshots of your folders or iSCSI LUNs by enabling the snapshot schedule with the advanced storage technology and optimized snapshot technology available via the BTRFS file system. When problems arise, the system can roll back to points-in-time and restore to the last backup, thereby ensuring that your data is well protected.
CloudSync: This backs up or synchronizes TNAS data with the cloud drive, which not only improves the availability of cloud data, but also provides several offsite backup versions, thus safeguarding the security of your data.


Virtualized Applications

The F2-423 satisfies virtualized application needs and provides additional functionality within one device with the use of professional virtualized apps, including VirtualBox and Docker, and by cooperating with Docker-compose and Portainer. This lowers the cost of corporate investment in IT.

System Level Security Protection

Increased cyberattacks mean that the system security of network devices security system are obliged to address considerable challenges. TOS enables various systematic safeguards, such as pam identity authentication, AES 256 encryption, automatic account lockout, anti-DoS attack, and firewall. Hence, it effectively reduces the risks of malicious attacks on your devices.

Multiple Commercial Applications

TNAS allows business users to easily build file servers, mail servers, web servers, FTP servers, MySQL databases, CRM, Node.js, Java VMs, and many other services, thereby satisfying the commercial requirement of various SMBs in such fields as education, consulting, finance, scientific research, and law.

Worry-free After-sales-service

TerraMaster implements its unique after-sales-service policy that “provides replacements within 2 years” and offers worry-free quality assurance through real-time online customer service, a professional technical forum, an online user guide, a technical service mailbox, and remote troubleshooting.


SKU: F2-423 Category: Tags: , , , ,


Processor Model Intel® Celeron® N5095
Processor Architecture X.86 64-bit
Processor Frequency Quad Core 2.0 GHz (Max burst up to 2.9 GHz)
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 (1 x 4GB)
Total Memory Slot Number 2 (DDR4 SODIMM)
Maximum Supported Memory 32 GB (16GB+16GB)
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 2
Compatible Drive types 3.5″ SATA HDD
Maximum Internal Raw Storage Capacity 40TB (20TB x2) (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
External Ports
RJ-45 1GbE Network Jack /
RJ-45 2.5GbE Network Jack 2
RJ-45 10GbE Network Jack /
 SFP+ 10GbE Network Jack /
USB3.1 Host Port 2(10Gbps)
USB2.0 Host Port /
PCIe Slots /
M.2 2280 NVMe Slot 2
Size (H*W*D) 227 x 119 x 133 mm
Packaging Size (H*W*D) 258 x 220 x 170 mm
Weight 2.4 kg
System Fan 80 x 80 x 25mm  1PCS
Fan Mode Smart, High speed, Middle speed, Low speed
Noise Level 26.4 dB(A) (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in idle state)
Power Supply 40W
Redundancy Power Supply /
AC Input Voltage 100V – 240V AC
Current Frequency Power Consumption
Power Consumption .22.1W(Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in read/write state)

.11.4 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)
Working Temperature 0°C  ~ 40°C (32°F ~ 104°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
Maximum Internal Volume Number 256
Maximum iSCSI Target 128
Maximum iSCSI LUN 256
Volume Expansion with Larger HDDs RAID 1,TRAID
Volume Expansion by Adding a HDD /
RAID Migration
SSD Cache
Hot Spare
Hard Drive S.M.A.R.T.
Seagate IHM
LUN Snapshot /
File Services
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 Encryption(TOS 5.0)
PAM (Pluggable Authentication Modules)
OTP Authentication(TOS 5.0)
HyperLock File System(TOS 5.0)
Power Managerment
Power Resume
Scheduled Power On/Off
Wake up On LAN(WOL)
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,Korean,Turkish, 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