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F4-425 Plus

3+4 Bay Hybrid NAS Storage for Home & SOHO

The F4-425 Plus delivers pro-level performance for tech enthusiasts and small offices seeking reliable Home NAS solutions.

$509.99
$599.99 
15% off

Powerful Performance: Equipped with an Intel N150 processor, 16GB DDR5 memory, and dual 5GbE ports, the F4-425 Plus delivers exceptional speed with read/write performance up to 1020 MB/s, ideal for multitasking and high-demand office or creative workflows.

Home Multimedia Hub: With 4K hardware decoding and support for Plex, Emby, and Jellyfin, this home media server effortlessly streams your media library to TVs, phones, and tablets. Integrated download tools and cloud sync make it easy to build and manage your entire entertainment collection.

TNAS Mobile Full Control: The TNAS Mobile app enables seamless photo backup, AI-powered album organization, and full NAS management directly from your smartphone. Enjoy secure remote access, flexible sharing with detailed permissions, and effortless mobile productivity.

Ultra-Quiet & User-Friendly: Designed for quiet home and office use, the system runs the intuitive TOS 7 OS—featuring a revamped interface, one-click setup, and straightforward web-based administration without requiring command-line skills.

Massive Storage & Security: Supporting up to 144TB (4× HDD + 3× M.2 SSD), it offers scalable storage with TRAID, TFSS snapshots, and HyperLock-WORM protection. Your data remains secure with multi-layer encryption, firewall policies, and ransomware resilience.

Cloud Sync Integration:​ TerraMaster CloudSync seamlessly connects your TNAS with Google Drive, OneDrive, Dropbox, Baidu Cloud, and other popular cloud services, supporting flexible sync strategies, encryption, and bandwidth control for unified hybrid storage.

Compatibility Guide: Unlock Top Performance, choose a certified, high-stability hard drive.

2-Year Worry-Free Warranty: Hardware, support, and long-term stability for your data.

Powerful Performance: Equipped with an Intel N95 processor, 8GB DDR5 memory, and dual 5GbE ports, the F4-425 Plus delivers exceptional speed with read/write performance up to 1020 MB/s, ideal for multitasking and high-demand office or creative workflows.

Home Multimedia Hub: With 4K hardware decoding and support for Plex, Emby, and Jellyfin, this home media server effortlessly streams your media library to TVs, phones, and tablets. Integrated download tools and cloud sync make it easy to build and manage your entire entertainment collection.

TNAS Mobile Full Control: The TNAS Mobile app enables seamless photo backup, AI-powered album organization, and full NAS management directly from your smartphone. Enjoy secure remote access, flexible sharing with detailed permissions, and effortless mobile productivity.

Ultra-Quiet & User-Friendly: Designed for quiet home and office use, the system runs the intuitive TOS 7 OS—featuring a revamped interface, one-click setup, and straightforward web-based administration without requiring command-line skills.

Massive Storage & Security: Supporting up to 144TB (4× HDD + 3× M.2 SSD), it offers scalable storage with TRAID, TFSS snapshots, and HyperLock-WORM protection. Your data remains secure with multi-layer encryption, firewall policies, and ransomware resilience.

Cloud Sync Integration:​ TerraMaster CloudSync seamlessly connects your TNAS with Google Drive, OneDrive, Dropbox, Baidu Cloud, and other popular cloud services, supporting flexible sync strategies, encryption, and bandwidth control for unified hybrid storage.

Compatibility Guide: Unlock Top Performance, choose a certified, high-stability hard drive.

2-Year Worry-Free Warranty: Hardware, support, and long-term stability for your data.
CPU

Intel N150 processor + 16GB RAM

Intel N95 processor + 8GB RAM

Core Applications

F4-425 Plus is designed for geek enthusiasts and small offices, featuring outstanding hardware configuration with 16GB DDR5 memory and dual 5GbE ports for exceptional performance. Its on-device AI photo management organizes memories without cloud uploads, ensuring complete privacy. With massive 144TB storage, it centralizes data effortlessly while enhancing team collaboration. Multi-layered security provides reliable, worry-free data protection.

F4-425 Plus is designed for geek enthusiasts and small offices, featuring outstanding hardware configuration with 8GB DDR4 memory and dual 5GbE ports for exceptional performance. Its on-device AI photo management organizes memories without cloud uploads, ensuring complete privacy. With massive 144TB storage, it centralizes data effortlessly while enhancing team collaboration. Multi-layered security provides reliable, worry-free data protection.

Powerful Hardware Configuration

Equipped with Intel's new Twin Lake N150 4-core processor (up to 3.6GHz) with integrated Intel® Graphics, delivering 25% faster 8K video transcoding. Features AES-NI hardware encryption, 16GB DDR5 memory, dual 5GbE ports, and three M.2 slots for exceptional performance and expandability.

Equipped with Intel's new Twin Lake N95 4-core processor (up to 2.4GHz) with integrated Intel® Graphics, delivering 25% faster 8K video transcoding. Features AES-NI hardware encryption, 8GB DDR4 memory, dual 5GbE ports, and three M.2 slots for exceptional performance and expandability.

Innovative Triple M.2 Design

The F4-425 Plus delivers massive expandable storage, supporting four HDDs (30TB/drive) and three M.2 SSDs (8TB/drive) for a total capacity of 144TB. Its three M.2 slots can be configured as a RAID 5 array for both data security and fast performance, while also enabling independent storage pools for HDDs and SSDs. Storage can be further expanded using TerraMaster USB DAS for seamless scalability.

Dual 5GbE Ports, High-Speed Performance

Dual 5GbE ports deliver blazing speeds and maxed-out performance. Supporting multiple Bond modes and SMB Multichannel, they achieve sequential write speeds up to 1020MB/s and 4K random read/write speeds of 280K IOPS. Ideal for multi-user offices and video editing scenarios.

Title

TOS 7

The World's First AI-Native NAS OS

We don' t add AI to NAS -we Make NAS the AI platform.

Learn About TOS 7

All-New TOS 7

Once again challenging new heights of friendliness and aesthetics! Hundreds of engineers, More than 300 days, fully dedicated to building the all-new TOS 7 system. Compared to the previous system, 90% of the icons have been redesigned, over 50 new features have been added, and more than 1000 details have been optimized. The refreshed colors and new visual language are not only refreshing but also meet your needs in broader application scenarios.

Docker Unleashes More Possibilities

TOS supports Docker Compose and Portainer for streamlined deployment of numerous containerized applications to meet customized needs. With VirtualBox, run multiple virtual machines in parallel to support testing, office, and development environments. All consolidated into one device for versatile work, learning, and entertainment use cases.

Build Your Home Multimedia Hub
Video Resource Downloading

The F4-425 Plus features 4K video hardware decoding and supports media server apps like Plex, Emby, and Jellyfin for multi-screen streaming to phones and TVs. With built-in download tools like Aria2 and Xunlei, it lets you easily acquire, manage, and enjoy your media. All in one powerful, streamlined hub.

User-Friendly NAS Operating System

The F4-425 Plus comes with TOS 6, TerraMaster’s web-based operating system built specifically for its NAS devices. All configurations are handled through an intuitive browser interface, no command-line expertise required.
TOS 6 introduces over 40 new features and refines more than 370 details, delivering a fully redesigned user experience. With strengthened security mechanisms and enhanced system performance, it offers TNAS users a smoother, faster, and more reliable upgrade experience.

Title

Team Collaboration, Redefined

An enterprise-level cloud solution built for SMBs. It ensures complete privacy security with on-premises data storage and enables efficient, stable file transfer over LAN, bypassing bandwidth limitations.

Permission Management

It offers 13 flexible permission settings to create individual accounts for home or business users, supporting batch creation, password policies, and Recycle Bin management. With Windows Active Directory/LDAP integration, users can log in directly with their domain credentials, eliminating extra passwords and streamlining IT maintenance.

Title

Enterprise Backup Solution

BBS is TerraMaster's self-developed, all-scenario enterprise backup solution. Its core modules work together to build a comprehensive data protection system: 

• TerraSync (TS): Syncs data across multiple backup servers and between servers and PCs. 

• Centralized Backup (CB): Backs up employee PCs, file servers, and VMs to a local backup server. 

• Duple Backup (DB): Provides off-site disaster recovery through cross-server replication. 

• CloudSync: Enables cloud-based backup and disaster recovery. 

• Snapshot: Protects files and folders with instant snapshots to guard against ransomware.

Seamless Cloud Drive Integration

TerraMaster CloudSync automates one-way or two-way sync between your NAS and leading cloud services like Google Drive, OneDrive, Dropbox, Baidu Cloud, and Alibaba Cloud. Flexible sync strategies, data encryption, scheduled tasks, and bandwidth control ensure secure and efficient synchronization.

Cross-Platform File Services

Supports mainstream protocols including SMB, NFS, SFTP/FTP, AFP, iSCSI, and WebDAV. Flexible permissions based on users, groups, and directories enable secure, cross-platform file sharing across diverse network environments.

Applications for Small and Medium Businesses

TNAS makes it easy to deploy file, mail, web, and FTP servers, alongside MySQL databases, CRM, Node.js, Java VM, and more, meeting the diverse needs of SMBs in education, consulting, finance, research, legal, and other sectors.

Video Surveillance Management

Easily build a professional surveillance system by connecting multiple ONVIF-compatible IP cameras to your TNAS. Manage cameras, view live or recorded footage, and store videos directly to designated storage on the NAS. All through a unified interface.

Multiple Safeguards for File Security

As cyberattacks grow increasingly rampant, TOS delivers essential multi-layered security. These defenses protect your data and significantly mitigate risks from hackers and ransomware.

​​Access Your World: The Private Cloud, Securely Everywhere.​

High-speed, reliable remote access

Leveraging a global multi-node network for reliable data transfer, it enables efficient access from any network environment without complex configuration. Securely retrieve your NAS data from anywhere in the world with consistent performance.

Title
Title

Private, Secure Personal Cloud

The F4-425 Plus enables one-click deployment of a high-security personal private cloud, delivering enterprise-grade protection without subscriptions. Using TPT direct-connect technology for full-speed transfers, it allows secure, easy access from any device with no complex setup, ensuring complete data privacy.

Local AI. No cloud upload required

TNAS uses local AI algorithms for intelligent photo organization without cloud uploads, ensuring complete privacy. It automatically recognizes faces, pets, and scenes to create personalized albums with relationship tags—enabling quick search and seamless sharing. Ideal for households and photography enthusiasts.

Unified Family Album Management

One Place for All Family Photos: Keep every memory secure, organized, and easy to share.
​​AI-Sorted Albums: Automatically organize thousands of photos into personal collections.
​​Timeline of Milestones: Instantly find any baby photo or video by date. Celebrate every growth.

TNAS Mobile – Everything Under Control

The app offers seamless automatic backup of mobile photos and videos, with AI-powered categorization for large libraries. It integrates device setup, user/storage management, personal folders, team shares, and a safe—enabling remote access and mobile productivity. Granular sharing controls allow custom link expiration, access limits, encryption, and download permissions for secure collaboration.

Family Data Storage Hub
Unified Management of Massive Resources

Family Data Storage Hub: Designed for households, it supports drives up to 30TB for a total capacity of 144TB—capable of storing 50 million HD photos, 150 million documents, 98,000 HD movies, or 5 million lossless audio tracks.

Unified Management of Massive Resources: Back up data scattered across PCs, mobile devices, external drives, and cloud storage to your TNAS for unified management—effectively preventing data loss caused by hardware failure or viruses.

Direct Data Drive Mounting

Unlike other NAS devices that require users to partition and format hard drives before installation, erasing all existing data, the F4-425 Plus supports direct installation with full preservation of the original data.
TOS 6 supports direct data drive mounting, enabling users to hot-plug hard drives with existing data into the TNAS for immediate access. This requires no partitioning or formatting and keeps all original data fully intact.

  • SPECIFICATION

Processor Model

Intel® N150 Quad-Core

Processor Architecture

x86 64-bit

Processor Frequency

Max burst up to 3.6 GHz

CPU Single-Core Score

/

Hardware Transcoding Engine

H.264, H.265, MPEG-4, VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60

Hardware Encryption Engine

√

System Memory

16 GB DDR5 non-ECC SODIMM

Pre-installed Memory Module

16 GB DDR5 non-ECC SODIMM (1x 16GB)

Total Memory Slot Number

1 (DDR5 SODIMM)

Maximum Supported Memory

32 GB DDR5 non-ECC SODIMM

Disk Slot Number

4

Compatible Drive types

3.5" SATA HDD 
2.5" SATA HDD

2.5" SATA SSD

Maximum Internal Raw Storage Capacity

120 TB (30TB x4) (Capacity may vary by RAID types)

M.2 2280 NVMe Slot

3 (PCIe 3.0 x1）

Drive Hot Swap

√

File System

Internal Drive

Btrfs, EXT4

External Drive

EXT3, EXT4, NTFS, FAT32, HFS+, BTRFS

RJ-45 5GbE Network Port

2

USB3.2 Host Port

3  x Type A + 1  x Type C

HDMI

1 x HDMI

Appearance

Size (H*W*D)

150*181*219 mm

Packaging Size (H*W*D)

186*277*277 mm

Weight

Net Weight: 2.9 Kg , Gross Weight: 4.1 Kg

System Fan

120 x 120 x 25mm  1PCS

Fan Mode

Smart, High speed, Middle speed, Low speed

Noise Level

20.9 dB(A) （Using 4 SATA HDDs/SSDs in standby mode; Test environment noise: 17.3dB(A); Test distance: 1m）

Power Supply

90 W

Redundancy Power Supply

/

AC Input Voltage

100V - 240V AC

Current Frequency

50/60 Hz, Single frequency

Learn More

F4-425 Plus产品文档

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