TERRAMASTER F4-425 Pro NAS Launches with AI-Native TOS 7 OS

TERRAMASTER introduces the F4-425 Pro, a four-bay network storage device that shifts focus toward local artificial intelligence capabilities. This release matters because it brings AI-driven data management tools directly to home and small office users without requiring cloud connectivity. The new system runs TOS 7, an operating system designed to handle complex tasks like semantic search and face recognition on the device itself. Buyers looking for smarter storage solutions will find this model offers built-in processing power that previous generations lacked.

Local AI processing and dual 5GbE networking define the new storage system

The hardware configuration centers on two Intel processor options: the N305 and the N350. Both variants come equipped with 8GB of system memory to support the demands of the new operating system. Storage flexibility is a key feature, with four hot-swap bays for 2.5-inch or 3.5-inch drives and three M.2 2280 slots for faster NVMe storage. The compact chassis measures 181 x 219 x 150 mm and weighs 2.9 kg, making it suitable for desktop placement in office or home environments.

Specifications

• OS: TOS 7 (AI-native)
• CPU: Intel N305 or Intel N350
• RAM: 8GB
• Drive Bays: 4x 2.5/3.5-inch hot-swap, 3x M.2 2280
• Network: Dual 5GbE LAN

Network performance relies on dual 5GbE LAN ports that support link aggregation. This setup allows the device to achieve maximum transfer speeds of up to 1,010MB/s when connected to compatible network infrastructure. The dual-port design provides redundancy and increased bandwidth for users who move large amounts of data frequently. This networking capability ensures that the storage device can keep pace with the local AI processing without becoming a bottleneck.

TERRAMASTER claims the F4-425 Pro supports local AI processing for natural language commands, photo face recognition, file classification, and semantic search. The company also provides a Skill Store and development toolchains to help third-party developers create custom AI applications. These features aim to make the NAS more intuitive and adaptable to specific user workflows. The device represents a move toward more intelligent, self-managing storage systems for prosumers.

The F4-425 Pro is available in Japan starting June 23, 2026. The model with the Intel N305 processor is priced at 109,990 JPY (around $682). The higher-end model with the Intel N350 processor costs 129,990 JPY (around $806). These prices reflect the added value of the AI-native operating system and the enhanced processing options. Users in Japan can purchase the device directly from TERRAMASTER upon release.

We touched on TerraMaster F4-425 Plus NAS Gets Intel in our earlier Terramaster coverage. The new F4-425 Pro builds on that foundation by upgrading the software stack to TOS 7 and adding dedicated AI features. This progression shows TERRAMASTER's strategy to integrate more advanced computing tasks into their standard NAS lineup. The shift from basic storage to AI-ready systems marks a clear evolution in their product roadmap.

The F4-425 Pro combines standard four-bay storage with local AI processing and dual 5GbE networking. It offers two CPU choices and runs the new TOS 7 operating system for enhanced data management. Pricing in Japan starts at around $682 for the base model and reaches around $806 for the upgraded version. The device ships on June 23, 2026, providing a concrete option for users seeking AI-integrated storage.