TERRAMASTER 4-Bay 8-Core Intel NAS Review: Specs, Pros and Cons

What stands out

• Intel N305 8-Core CPU for high-performance multitasking
• 8GB RAM capacity to support heavy workloads
• Three M.2 NVMe slots with Hyper Cache acceleration
• Dual 5GbE ports with link aggregation up to 1020 MB/s
• TOS 7 AI OS with OpenClaw ready for natural language commands

Who it fits

Key specs explained

Processor: Intel N305 8-Core

This CPU provides eight processing cores to handle multiple tasks simultaneously. You benefit from smooth performance when running virtual machines, containers, or transcoding video streams. Compare this to dual-core or quad-core units found in entry-level NAS drives. The extra cores ensure your system remains responsive even when several users access files or services at the same time.

RAM Capacity: 8GB

Eight gigabytes of memory allows the operating system to cache data and run background services efficiently. This amount supports Docker containers and virtualization workloads without stuttering. When shopping for NAS drives, note that many budget models include only 2GB or 4GB. More RAM means you can run more applications simultaneously without slowing down file transfers or media playback.

Network Connectivity: Dual 5GbE

Two 5 Gigabit Ethernet ports allow you to combine them for speeds up to 1020 MB/s. This setup reduces bottlenecks when moving large files or editing video directly from the drive. Compare this to single 1GbE ports that cap at roughly 110 MB/s. If your local network supports it, link aggregation provides significantly faster data transfer rates for heavy workloads.

M.2 NVMe Slots: 3 slots

Three slots for NVMe solid-state drives enable fast caching or direct storage expansion. You can use these for Hyper Cache acceleration to speed up frequent file access. This feature distinguishes high-performance units from basic enclosures that lack SSD support. It is particularly useful for virtualization environments or 4K video editing where rapid read speeds are critical for smooth operation.

RAID Support: RAID 0, 1, 5, 6, 10, TRAID

This NAS supports standard RAID levels plus TerraMaster’s exclusive TRAID technology. TRAID allows you to mix drive capacities, maximizing usable space without sacrificing data protection. Standard RAID requires drives of equal size. This flexibility helps you upgrade gradually by adding different sized drives while maintaining redundancy and performance across your storage array.

Design and build specifications

The listing describes the TerraMaster F4-425 Pro as a silver enclosure with a compact footprint. It measures 7.13 inches in width, 8.62 inches in length, and 5.91 inches in height. The unit weighs 6.39 pounds. These dimensions suggest it fits on most standard desks or shelves without consuming excessive space. The silver finish provides a neutral look that blends into home office or small business environments. The listing does not specify the materials used for the chassis, so you cannot verify if it is metal or plastic from this data alone. You should assume the build quality matches the price tier of an Intel-based NAS.

The front layout likely includes drive bays for four hard drives, consistent with its 4-Bay designation. The listing notes it is diskless, meaning you must purchase drives separately. This design choice allows you to select drives based on your specific storage needs rather than being locked into pre-installed media. The rear panel houses the dual 5GbE ports and power connections, though specific port locations are not detailed in the provided specs. The compact size means you should ensure adequate airflow around the unit. The weight indicates a solid construction that resists tipping, which is useful if you place it in a high-traffic area. The design prioritizes functionality over flashy aesthetics, aligning with its role as a serious storage server.

Setup and everyday use

Setting up this TerraMaster F4-425 Pro begins with installing your own drives, as the unit ships diskless. You insert hard drives into the four bays and connect the dual 5GbE network ports. The system runs TOS 7, an AI-native operating system that replaces complex menu navigation with natural language commands. This approach simplifies initial configuration and daily management. You can access the interface via the TNAS Mobile app, which allows you to manage, access, and share files from your phone. Daily use involves leveraging the 8GB RAM and Intel N305 processor for multitasking. The three M.2 NVMe slots with Hyper Cache acceleration support video editing and virtualization workflows. You can run Docker containers and Windows or Linux virtual machines simultaneously. The NAS supports online editing of Word, Excel, and PowerPoint files without downloading them. Global search functions locate files across all folders and volumes. Media users stream 4K content to smart TVs using Plex, Emby, or Jellyfin. The TerraMaster Photos app organizes memories with AI categorization. Storage flexibility comes from TRAID technology, which allows mixed-capacity drives and online expansion. Backup routines use the Business Backup Suite and TFSS snapshots. HyperLock-WORM protection safeguards data integrity. The system handles ransomware defense through real-time snapshot capabilities. You do not need to migrate data or interrupt services when expanding your array. The dual 5GbE ports provide link-aggregated speeds for efficient data transfer across your local network.

Before you buy this NAS

You must purchase hard drives separately, as this unit ships diskless. Ensure your selected drives are compatible with the four-bay enclosure and the TRAID or RAID configurations. You also need to account for power consumption, as the Intel N305 processor and eight cores draw more energy than basic models. Consider adding M.2 NVMe SSDs to utilize the three available slots for Hyper Cache acceleration, which significantly improves performance for video editing and virtualization tasks. Check that your network infrastructure supports 5GbE to fully leverage the dual ports. If you plan to run Docker containers or Windows virtual machines, verify that your RAM requirements fit within the 8GB limit. This device sits alongside other high-performance NAS drives but demands more attention to cooling and power management. Regularly update TOS 7 to maintain security and access new AI features. Keep backups using the built-in snapshot tools to protect against ransomware.

Check before you buy

• Buy four hard drives compatible with the 4-bay enclosure.
• Add M.2 NVMe SSDs for Hyper Cache acceleration.
• Verify your network supports 5GbE connections.
• Ensure 8GB RAM meets your virtualization needs.
• Check power supply capacity for the 8-core CPU.

The product at a glance

1

TERRAMASTER 4-Bay 8-Core Intel NAS

Best for: AI-driven file management and virtualization

Drive Bays

4-Bay

Network Connectivity

5GbE x 2

Processor

Intel N305

RAM Capacity

8GB

M.2 NVMe Slots

3 slots

Included Storage

Diskless

View on Amazon: TERRAMASTER 4-Bay 8-Core Intel NAS Affiliate link

The TerraMaster F4-425 Pro is a 4-bay NAS driven by an Intel N305 8-core CPU and 8GB of RAM. It features dual 5GbE ports and three M.2 NVMe slots for high-speed caching. The system runs TOS 7, an AI-native operating system that supports local processing and natural language commands. It includes hardware 4K decoding for media streaming and supports Docker and virtualization for developers.

Pros

• Intel N305 8-core processor handles multitasking efficiently.
• Dual 5GbE ports provide link-aggregated speeds up to 1020 MB/s.
• Three M.2 NVMe slots enable Hyper Cache acceleration.
• TOS 7 OS integrates OpenClaw AI agent for natural language commands.
• Supports Docker Compose, Portainer, and VirtualBox for containers and VMs.

Cons

• Sold diskless, requiring you to purchase hard drives separately.
• Lacks built-in USB 3.0 ports for direct peripheral connection.
• No mention of eSATA connectivity for external storage expansion.

Good fit if

• You need high-speed local AI processing and virtualization capabilities.
• You want to aggregate dual 5GbE connections for faster network transfers.
• You prefer managing files through natural language commands via TOS 7.

Skip if

• You require a pre-loaded storage solution with drives included.
• You need direct USB 3.0 connectivity for external devices.
• You are looking for a basic NAS without AI features.

Verdict: TerraMaster F4-425 Pro 4-Bay NAS is a powerful option for users who need robust virtualization and AI-driven file management. It suits developers and home lab enthusiasts who value high-speed caching and network aggregation over plug-and-play simplicity.

Specifications side by side

Frequently asked questions

See also

• terramaster f4 425 pro NAS 4 bay alternatives
• best TERRAMASTER 4-Bay network attached storages
• aoostar wtr pro 4 2 bay NAS mini PC review
• maiwo 4 bay nvme cloner review