Price: $549.99 - $369.99
(as of Sep 09, 2025 20:48:02 UTC – Details)
Product description
1 x86 Power, ARM Reach
2 Control NAS via Mobile
3 Intuitive Web UI
4 Easy Remote Access
5 Direct Data HDD Mount
1 Supports 4K Transcoding
2 Multimedia Hub
3 TerraSync: Easy Data Sync
4 Download Without Limits
5 NAS-Powered Surveillance
1 AI NAS, Smart NAS
2 AI Photo Management
3 Supports 50+ Accounts
4 Supports up to 120TB
5 Hack-Proof Your Data
1 Powerful Hardware
2 Super Quiet
3 Great Heat Dissipation
4 Tool-Free
5 Unique Push-Lock Design
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. Ideal for family photo backups, media libraries, and seamless playback on devices like TV, Chromecast, and smart TVs.
AI-Powered Photo Management with Local Privacy: The F4-425 multimedia server leverages on-device AI to intelligently categorize photos by faces, pets, objects, and scenes – without cloud dependency. Supports JPG, HEIC, PNG, and more, with secure sharing via TNAS Mobile (custom expiry, download limits, and password protection).
Effortless Cross-Platform Access & Sync: The F4-425 NAS server enables access files like a local drive with TNAS PC client or map NAS storage as a network disk. TerraSync enables real-time PC-to-NAS backups with version history (up to 32 versions). CloudSync integrates Google Drive, OneDrive, and more for hybrid cloud workflows.
Plug-and-Play Data Direct Access: The F4-425 4-bay NAS is equipped with TOS 6 which features unique Data Disk Mount, letting you hot-swap existing HDDs without reformatting – access data immediately via network. Combined with tool-free Push-lock drive bays, swapping drives takes under 10 seconds.
Enterprise-Grade Security & Scalable Storage: The F4-425 NAS storage comes with multi-layered protection: firewall, OTP authentication, DoS defense, and ransomware-proof HyperLock/WORM. Supports TRAID for flexible storage expansion, plus snapshots and Surveillance Manager for IP camera recordings. Scales to 120TB (4 x 30TB) for family data centralization.
TERRAMASTER High Performance NAS Comparison
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Customer Reviews
4.5 out of 5 stars 6
4.5 out of 5 stars 6
4.1 out of 5 stars 162
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Price
$369.99$369.99
$249.99$249.99
$499.99$499.99
$699.99$699.99
Drive Bays
4
2
4
4
CPU
Intel x86 4-Core
Intel x86 4-Core
Intel x86 4-Core
Intel x86 8-Core
RAM
4GB
4GB
8GB
32GB
LAN Port
2.5GbE Port
2.5GbE Port
2.5GbE Port
2.5GbE Port
M.2 SSD Slot
None
None
2
2
USB Host (Front)
USB 3.2 *1
USB 3.2 *1
None
None
USB Host (Back)
USB 3.2 *1 + USB 3.1 *1
USB 3.2 *1 + USB 3.1 *1
USB 3.2 *2
USB 3.2 *2
Max Raw Storage Capacity
120 TB (30TB x 4, RAID 0)
60 TB (30TB x 2, RAID 0)
120 TB (30TB x 4, RAID 0)
120 TB (30TB x 4, RAID 0)
Supported RAID Type
RAID 0/1/5/6/10; TRAID/TRAID+
RAID 0/1/JBOD/Single; TRAID
RAID 0/1/5/6/10; TRAID/TRAID+
RAID 0/1/5/6/10; TRAID/TRAID+
4K Hardware Transcoding
✔
✔
✔
✔
Push-Lock Tray
✔
✔
✔
✔
Power consumption
33W(Access), 13W(Hibernation)
22W(Access), 11W(Hibernation)
33W(Access), 13W(Hibernation)
33W(Access), 13W(Hibernation)
Powerful Performance: Equipped with an Intel x86 quad-core processor and 4GB RAM, the F4-425 network attached storage effortlessly handles 4K transcoding and multitasking. The 2.5GbE port ensures ultra-fast file transfers and supports multi-user concurrent access.
Home Multimedia Hub: The F4-425 media server supports hardware-level 4K H.265 decoding, compatible with Plex, Emby, and Jellyfin for smooth HD video playback, with DLNA for seamless multi-device streaming. The Photos app features AI smart album and efficiently organizes millions of photos.
TNAS Mobile Full Control: Initialize setup for your F4-425 NAS storage via the TNAS Mobile app without a PC. The mobile app supports automatic photo and video backups, plus real-time local/remote synchronization, all managed through a single client.
Ultra-Quiet & User-Friendly: The F4-425 NAS server operates at just 21dB(A), ideal for quiet environments like bedrooms. Its tool-free Push-Lock design HDD trays enable to install HDDs in 10 seconds.
Massive Storage & Security: The F4-425 4-bay NAS supports up to 120TB storage (4 x 30TB for each bay), 50+ independent user accounts, and flexible TRAID / TRAID+ arrays, 30% more storage space than traditional RAID while ensuring data redundancy. SPC module and CloudSync (compatible with Google Drive, OneDrive, Dropbox) enable seamless cross-platform synchronization and uninterrupted data access. Additionally, TerraSync enables two-way sync between the F4-425 and PCs/Macs.