Terramaster F4-425 & F2-425 NAS - Should You Buy?

NASCompares
NASComparesMar 4, 2026

Why It Matters

The review underscores how ultra‑affordable NAS units can meet basic storage needs, but their limited networking and CPU capabilities may hinder growth, guiding buyers toward models that balance cost with future‑proof performance.

Key Takeaways

  • TerraMaster F4-425 and F2-425 priced under $400, highly affordable.
  • T‑RIDE flexible RAID lets mixed‑size drives maximize capacity.
  • Built‑in TOS OS offers robust features despite minor glitches.
  • Single 2.5 GbE port and lack of M.2 slots limit performance.
  • Newer TerraMaster models provide better CPU, networking, and expandability.

Summary

The video reviews TerraMaster’s entry‑level F4‑425 and F2‑425 NAS devices, part of the 2025‑2026 series that target budget‑conscious users seeking an out‑of‑the‑box x86 Intel platform.

Key points include rock‑bottom pricing ($269 for two‑bay, $399 for four‑bay) combined with a quad‑core Celeron N5095, 4 GB soldered RAM, and a single 2.5 GbE port. The units feature TerraMaster’s T‑RIDE flexible RAID, allowing mixed‑size drives to be pooled without manual reconfiguration, and a sleek, well‑ventilated chassis with low power draw. The proprietary TOS operating system, now at version 6/7 beta, offers isolation mode, multi‑site backup, VPN, media apps, and Btrfs support, while still permitting third‑party OS installs without voiding the warranty.

The reviewer highlights concrete examples: the affordable price point compared with competitors, the convenience of T‑RIDE versus traditional RAID 5/6, and the ability to swap the internal USB boot key for a custom OS. However, the devices suffer from a single 2.5 GbE NIC, no M.2 NVMe slots, and an aging Celeron CPU, creating a performance ceiling that becomes evident with SSDs or multi‑drive RAID configurations. The HDMI port, present for years, remains unused beyond basic debugging.

For home users or small offices needing a low‑cost, ready‑to‑run NAS, the F4‑425/F2‑425 are compelling. Power users or those planning future expansion should consider TerraMaster’s higher‑tier Plus, Pro, or SSD‑focused models, or rival brands offering 10 GbE, NVMe caching, and newer Intel processors, to avoid bottlenecks and ensure scalability.

Original Description

TERRAMASTER F2-425 $269.99 on Amazon - https://amzn.to/3ZmSsLV
Terramaster F4-425 NAS $399 on Amazon - https://amzn.to/4tkGZu4
Terramaster F4-425 NAS on $519 Amazon https://amzn.to/4obyrCA
Terramaster F4-425 NAS on £484 (+ £78 off) https://amzn.to/47ywdr7
F2-425 PLUS 2-Bay $339 on Amazon - https://amzn.to/3KYVUIG
F2-425 PLUS 2-Bay £379 on Amazon (£57 Off) - https://amzn.to/4oyDugs
Terramaster F4-425 PLUS $569 https://s.click.aliexpress.com/e/_c4ElII3t
TERRAMASTER F2-425 Plus NAS $399 https://s.click.aliexpress.com/e/_c2JMwLdv
Synology vs Terramaster in 2025 (Article) https://nascompares.com/guide/synology-vs-terramaster-in-2025/
Update - The Terramaster F6-424 Max NAS is NOW Available HERE on Amazon for $999 https://amzn.to/40Tdgw8
Terramaster F8 SSD $599 on Aliexpress - https://s.click.aliexpress.com/e/_DntaIZd
Terramaster F2-424/F4-424/F4-424 PRO
Buy Here on Amazon - https://amzn.to/47bYUH9
Terramaster F4-424 Pro Review - https://www.youtube.com/watch?v=I9-n1Ahysd8
Terramaster F4-424 Pro NAS FULL YouTube Review https://www.youtube.com/watch?v=qW6xY0RVQew
Video Chapters
0:00 What Are the TerraMaster F2-425 and F4-425
00:26 Who These Entry Level NAS Are For
00:43 How Cheap Are They Really
01:09 Pricing vs Other NAS Brands
02:28 T-RAID Flexible RAID Explained
03:36 Why Flexible RAID Actually Matters
04:23 Design, Cooling, and Power Efficiency
05:17 TerraMaster TOS Software Strengths
06:24 Backup, Security, and Multimedia Features
07:18 Using TrueNAS, Unraid, or Other OS
08:18 Who Should Not Buy These NAS
08:47 Single 2.5Gb LAN Bottleneck
09:51 No NVMe SSD Support Problem
11:07 Aging Intel N5095 CPU Limits
12:57 HDMI Port With No Real Use
14:13 Better TerraMaster Options for the Money
Thinking of buying a product mentioned in today's video from Amazon? If this video has helped you make that decision, you can head to Amazon using this link and we will get a small % profit of whatever you buy, which goes directly back to NASCompares and allows me and Eddie to keep doing what we do here on YouTube and the Blog - https://amzn.to/3TjM0kj

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