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TerraMaster says its Storage Upgrade Season offers up to 30% off selected NAS, DAS, and SSD products during Prime Big Deal Days, October 6–7, 2026. The 30% is the advertised maximum, not a discount applied to every product: TerraMaster’s store catalog showed the F4-425 Pro at 20% off and the D4-320 at 10% off when checked. Prices, stock, and marketplace offers can differ, so check the exact listing before buying.
What the TerraMaster promotion includes
In its official campaign announcement, TerraMaster describes limited-time deals on selected storage products across participating Amazon marketplaces, with savings of up to 30%. The event dates given in the announcement are October 6–7, 2026. The offer is for selected NAS, DAS, and SSD products; it does not establish that every model is discounted or that each discount reaches 30%.
TerraMaster names Amazon marketplaces in the US, UK, Germany, France, Italy, Spain, Japan, Canada, Australia, the Netherlands, Poland, and Sweden, alongside its official store and other retailers. Participation does not guarantee that every product is available in every country. The announcement page metadata is dated September 29, but that alone does not establish that deals were available before the October 6–7 event.
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Which products are listed, and what discounts were shown?
TerraMaster’s official deal catalog lists NAS and DAS models, with model-specific prices and discount labels that may change. When the catalog was checked, it showed:
#1 Best Overall
- High Speed Data Transmission: The D2-320 hard drive enclosure (a DAS, NOT a NAS) adopts USB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. With 2 hard drives in RAID 0, the read/write speed can reach up to 521MB/s (SATA III HDD 8TB x 2). With 2 SSD's in RAID 0, the read speed can reach 1075MB/s (SATA III 1TB SSD x 2)
- Multiple RAID Configurations: The D2-320 is a hardware RAID enclosure and it supports RAID 0, RAID 1, JBOD and SINGLE which can better satisfy various demands of users. In RAID 1, data will be in a mirror backup. When there is a damaged hard drive, you can directly replace the hard drive, and the data will be recovered automatically. This provides an absolute security for the data
- Super-Large Storage Capacity: The D2-320 USB storage enclosure can support up to two 3.5" and 2.5" SATA HDD, as well as 2.5" SATA SSD, with a maximum capacity of 22TB per drive, providing users with up to 44TB (22TB x 2) of storage space
- Intelligent Temperature Control: The D2-320 HDD enclosure has an intelligent temperature-controlled and low-noise fan that automatically adjusts its speed based on the temperature of the hard disk. This feature ensures that the hard disk operates at its best temperature and provides better heat dissipation
- Tool-Free Hard Drive Installation: The D2-320 external hard drive enclosure features a tool-free hard drive tray design that allows for easy installation and removal of hard drives without the need for any tools. Furthermore, the D2-320 incorporates a brand new Push-lock unique design from TerraMaster, which automatically locks the hard drive tray when you insert the hard drive, preventing the hard drive from falling out or disconnecting
| Product | Type and listed details | Catalog discount observed |
|---|---|---|
| F4-425 Pro | Four-bay Intel hybrid NAS; listed with an 8-core processor, 8 GB or 16 GB RAM variants, and dual 5GbE ports. | 20% off |
| F4-425 | Four-bay Intel NAS; listed with a quad-core processor, 4 GB RAM, and 2.5Gbps RJ45. | Not stated in the reviewed catalog observation. |
| F2-425 | Two-bay Intel NAS; listed with a quad-core processor, 4 GB RAM, and 2.5Gbps RJ45. | Not stated in the reviewed catalog observation. |
| D4-320 | Four-bay USB 3.2 10Gbps HDD enclosure. | 10% off |
| D8 Hybrid 2 | Eight-bay USB 3.2 10Gbps HDD/SSD hybrid enclosure; listed with RAID 0/1. | Not stated in the reviewed catalog observation. |
These are store-listing descriptions, not independent product tests. The catalog also displayed out-of-stock markers for some listings, and the observed discounts are not verified Amazon prices. Check the current product page for the exact SKU, configuration, price, and stock in your region.
Choose NAS or DAS based on how you use storage
Choose NAS for shared, centrally managed files
A NAS connects to a network so files can be managed centrally and accessed by more than one device, depending on configuration. TerraMaster positions NAS for expanding capacity and managing photos, videos, backups, and other files. Consider a NAS if shared access is important; confirm the model’s capabilities and setup requirements for your intended use.
Rank #2
- Innovative Storage: The D8 Hybrid 2 hdd enclosure can hold 4 SATA HDDs/SSDs and 4 M.2 2280 NVMe SSDs, supporting up to 152TB (30TB×4 + 8TB×4). It combines the advantages of HDDs’ massive capacity and SSDs’ high-speed performance simultaneously. Free TPC Backupper software is included for easy backup and data security.
- 8 Independent Drives: The D8 Hybrid 2 USB storage Supports 4 independent HDDs and 4 independent M.2 SSDs, no built-in RAlD. Enjoy flexible storage expansion, simpler file management, and easier drive maintenance. Third-party RAID software supported if needed.
- One-Touch Power Mode Switch: TPM (TerraMaster Power Management) is a proprietary power management technology developed by TerraMaster specifically for USB direct attached storage (DAS) devices. As a unique innovation, it is engineered to optimize power efficiency, enhance operational safety, and deliver faster data response in everyday storage scenarios. Easily switch between Power Save Mode and Active Mode for the perfect balance of energy efficiency, faster drive wake-up, and always-on workflow performance.
- 10Gbps High-Speed Performance: The D8 Hybrid 2 hard drive enclosure adopts USB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. Read speeds reach up to 1020 MB/s with a single M.2 SSD. A 5GB HD movie file can be transferred in approximately 5 seconds, significantly improving workflow efficiency. This high-speed performance ensures smoother video editing, faster large file exports, and more efficient multitasking, reducing wait times and enhancing overall productivity.
- Plug and Play, Highly Compatible: The D8 Hybrid 2 external hdd enclosure is a plug-and-play device that doesn't require drivers to work. It is highly compatible with macOS, Windows, Linux and NAS operating systems. It has a USB Type-C interface and comes with a Type-C to Type-C cable. The device is compatible with various computer interfaces, including USB 4.0, USB 3.2, USB 3.1, USB 3.0, Thunderbolt 5, Thunderbolt 4, and Thunderbolt 3.
Choose DAS for storage attached to one computer
A DAS enclosure connects directly to a PC or Mac, making it a fit when the main goal is additional local capacity, backups, or storage for large files. Check that the computer supports the enclosure’s connection interface and that the intended workflow suits direct-attached storage.
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- Bay count and drive type: Match the enclosure’s bays and supported HDD or SSD type to your current library and likely expansion needs.
- Connection and workload: Compare the host interface with your computer or network and the transfers you expect. An advertised interface rate is not a guarantee of real-world throughput.
- Drive inclusion: Confirm whether drives are included with the exact product listing; the campaign and catalog information does not establish drive bundles.
- Compatibility: Check TerraMaster’s current compatibility information for the exact model and any drives or accessories you plan to use.
- Live availability: Verify price and stock with your own Amazon marketplace, TerraMaster’s store, or the retailer you intend to use.
Check shipping and regional availability before ordering
The TerraMaster store catalog displayed a notice saying shipments to non-US regions and select US models were temporarily suspended from September 30 through October 7, with normal shipping resuming October 8. That notice is specific to the store page; it does not establish shipping terms for every product, customer, or Amazon marketplace. Confirm the delivery estimate and restrictions on the checkout page for your location.
Rank #3
- Innovative Storage: An innovation of an 8-bay hybrid HDD NVMe SSD enclosure. The D8 Hybrid can hold 4 SATA HDDs/SSDs and 4 M.2 2280 NVMe SSDs, with a capacity of 30TB a drive, and 8TB per M.2 SSD, providing users with up to 152TB (30TB x 4 + 8TB x 4) of storage space, combining the advantages of HDDs’ massive capacity and SSDs’ high-speed performance simultaneously! With TERRAMASTER's TPC Backupper software, you can easily schedule backups of important data to enhance data security.
- Ideal Solution for Hot and Cold Data: Tailor your storage setup to your data’s needs and usage patterns. Leverage the large capacity advantage of mechanical hard drives and the high-speed read/write performance of M.2 SSDs. Users have the flexibility to manually select where to store their data based on type and frequency of usage, optimizing storage efficiency and access speed. This approach ensures swift access to hot data stored on high-speed SSDs, while cold data is stored economically and efficiently on HDDs.
- 10Gbps Transfer Bandwidth: The D8 Hybrid hard drive enclosure adopts USB 3.2 Gen2 protocol for high-speed data transmission up to 10Gbps. With an SSD, the speed can reach up to 521MB/s, and using an NVMeM.2SSDs, it can reach up to 980MB/s.
- Convenient to swap hard drives: The M.2 SSD enclosure features a tool-free hard drive tray design that allows for easy installation and removal of hard drives without the need for any tools. Furthermore, this USB storage incorporates a brand new Push-Lock unique design from TERRAMASTER, which automatically locks the hard drive tray when you insert the hard drive, preventing the hard drive from falling out or disconnecting.
- Better Heat Dissipation: This HDD enclosure has an intelligent temperature-controlled and low-noise fan that automatically adjusts its speed based on the temperature of the hard disk. This feature ensures that the hard disk operates at its best temperature and provides better heat dissipation. The D8 Hybrid direct attached storage also features power on recovery, it automatically reboots after abnormal power loss while staying off after normal shutdown, enabling unattended operation.
What the advertised savings do—and do not—tell you
“Up to 30%” is TerraMaster’s promotional claim about the maximum saving on selected products. It is not an independent measure of product performance or value, and the observed store discounts of 20% for the F4-425 Pro and 10% for the D4-320 illustrate that model discounts vary. The campaign materials do not provide independent performance testing or establish that a given deal is the lowest available price.
Quick Recap
Rank #4
- 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), suitable 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
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
