TerraMaster F4-425 NAS/storage server Desktop Intel® Celeron® N5095 4 GB DDR4 0 TB Black

TerraMaster F4-425

​​Beyond ARM limits: The Intel x86-powered F4-425 delivers robust, smart, and whisper-quiet performance for your ultimate home data hub.​

F4-425 Ultra Performance​​

Powerful Intel x86 Performance for Home & Multimedia: The F4-425 network attached storage features an Intel x86 quad-core processor, 4GB RAM, and a 2.5GbE port, delivering robust 4K video transcoding and smooth multimedia streaming. Perfect for home photo backups and multimedia entertainment.

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.

Family Data Hub​​

Scalable 120TB Family Hub: ​​Centralize photos, media libraries, and backups—streams seamlessly to TVs and streaming devices.
Safely centralize data from all your devices—Windows, Mac, mobile, external drives, and cloud storage—into TNAS. Protect against hardware failures, ransomware, and disasters with single-platform management.

AI Photo Management With Local Privacy

The F4-425 uses ​​on-device AI​​ to auto-organize photos by faces, pets, objects, and scenes—no cloud needed. Supports JPG/HEIC/PNG+ with secure TNAS Mobile sharing (expiry controls, download limits, passwords).

TNAS Mobile: Your All-in-One Solution

TNAS Mobile combines auto photo backup, AI organization, user/storage controls, secure vaults, and admin tools—delivering seamless remote access. Share memories confidently with granular controls: custom rules, expirations, access limits, and military-grade security for one-tap worry-free sharing.

Mobile Photo Backup

This all-in-one app combines automatic photo backup, AI-powered photo organization, user management, storage control, personal/team folders, secure vaults, and admin tools—delivering seamless remote access and mobile productivity.

Granular Sharing Control in TNAS Mobile

Share precious memories with confidence through TNAS Mobile's granular controls—customizable share names, expiration dates, access limits, download permissions, and optional password protection—all secured with multi-layered security for worry-free, one-tap personalized sharing.

Seamless Remote Access

Access files anywhere, anytime—powered by TNAS.online's global network. Enjoy stable transfers and effortless connectivity in any network environment, zero setup required.

Private Accounts

The F4-425 supports 50+ independent accounts for cost-effective family sharing.​​ Isolated storage ensures privacy, while a shared space enables seamless collaboration—perfectly balancing security and teamwork.

Home Multimedia Center

The F4-425 delivers robust 4K video decoding with UPnP/DLNA protocol support. Stream seamlessly to phones, tablets, and TV platforms (Roku/Apple TV/Chromecast/Fire TV/smart TVs) via TerraMaster's Media Server or apps like Plex/Emby—delivering uninterrupted viewing pleasure.

User-Friendly NAS System: All-in-One Solution​

​​The F4-425 includes TerraMaster's free TOS 6 OS—a web-based system designed exclusively for their NAS.​​ Configure everything through an intuitive browser interface, no command lines needed. TOS 6 delivers ​​40+ new features and 370+ refinements​​ with a complete redesign, enhanced security for stronger data protection, and optimized performance for agile task processing—​​offering TNAS users an unparalleled upgrade experience.

Direct Drive Mounting·Seamless Cloud Storage Integration·Cloud Drive Mounting​

TOS 6's Direct Mount revolutionizes storage expansion:​​ Simply hot-swap pre-used drives with existing data into your TNAS—no reformatting or data loss required. Instantly access content over the network while seamlessly migrating, expanding storage, or repurposing old drives.
Mount cloud storage as a local TNAS folder. Access and manage your cloud files directly from your TNAS as if they were local.

Rich Multimedia Applications

TerraMaster App Center: Your Free Productivity Hub​​.
Download powerful tools like ​​Aria2, qBittorrent, and Transmission​​ for high-speed file transfers and media downloads. Enhance your multimedia experience with apps including ​​Media Server, Plex, Emby, Terra Photos, and iTunes Server​​—simplifying management, sharing, and playback of home videos, photos, and music.

Surveillance Manager

TerraMaster's proprietary Surveillance Manager enables you to create a complete video surveillance system by connecting multiple ONVIF-compliant IP cameras to your TNAS. This integrated solution provides centralized camera management, live viewing, historical playback, and automatic storage of all recordings to designated TNAS locations - all through an intuitive unified interface.

Easy to swap hard drives

The F2-425 features a tool-less drive tray design, allowing effortless hard drive installation and removal without any tools.
It incorporates innovative Push-lock mechanism—automatically locking the drive in place upon insertion to prevent disconnection or accidental falls.
Swapping a hard drive takes less than 10 seconds, providing exceptional convenience for users who frequently need to replace drives or transfer data.