# TerraMaster D4-320 4-Bay Desktop Disk Array for 2.5" and 3.5" SATA HDD/SSD

**URL:** https://aio.lv/en/product--terramaster-d4-320--12411627
**Data updated:** 2026-05-09 17:32 (EEST)
**Category:** NAS Devices & Storage
**Manufacturer:** TERRAMASTER
**Manufacturer code:** D4-320
**EAN:** 6939236143783
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 205.49 €
**Prices and availability valid until:** 2026-10-09 23:59
**Price without VAT (21%):** 169.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--terramaster-d4-320--12411627

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.09.2026 | free |
| Pickup points | 28.09.2026 | 1.99 EUR |
| Courier delivery to door | 28.09.2026 | 4.99 EUR |

## Summary description

The TerraMaster D4-320 is a 4-bay desktop disk array designed for home and home office use. It supports both 2.5-inch and 3.5-inch SATA HDD and SSD drives, offering a flexible storage expansion solution. Featuring a USB 3.2 interface with speeds up to 10Gbps, this enclosure provides reliable data management and high-speed connectivity for your storage needs in a compact, black chassis.

## Long description

The TerraMaster D4-320 is a 4-bay desktop disk enclosure designed for home and home office environments. This compact, black device provides a flexible and high-performance storage expansion solution, supporting both 2.5-inch and 3.5-inch SATA HDD and SSD drives. Utilizing the USB 3.2 Gen2 protocol, it delivers data transfer speeds of up to 10 Gbps, ensuring efficient file management and rapid access to your data.
Advantages
The D4-320 features a tool-free, hot-swappable drive bay design with a secure push-lock mechanism, allowing for quick and easy drive replacements without the need for extra tools. Its intelligent, temperature-controlled fan and optimized internal structure ensure effective heat dissipation while maintaining quiet operation, with noise levels reduced by up to 50% compared to previous models. The device also includes advanced power protection to safeguard your drives against electrical issues and supports intelligent sleep mode to extend drive lifespan.
Suitable for
Expanding storage capacity for home and office computers
High-speed data backups and file archiving
Expanding storage space for compatible TerraMaster NAS devices
Media storage for connection to TVs or set-top boxes
The D4-320 is not suitable for users who require built-in hardware RAID functionality, as it operates in a single-drive mode by default. If you need RAID arrays for data redundancy or performance, you must manage them using third-party software on your host computer.
Key specifications
Drive bays: 4
Supported drive types: 2.5-inch and 3.5-inch SATA HDD/SSD
Interface: USB 3.2 Gen2 (up to 10 Gbps)
Maximum capacity: Up to 88 TB (4 x 22 TB)
Power supply: 72 W
Compatibility: Windows, Mac, Linux
Dimensions: 179 x 154 x 222 mm
Weight: 1.9 kg
How to use
To use the device, simply insert your SATA drives into the tool-free brackets and secure them with the push-lock mechanism. Connect the D4-320 to your computer or compatible NAS using the provided USB Type-C cable. Since the device is plug-and-play, it will be automatically recognized by your operating system without the need for additional drivers. For automated backups on Windows, you can install the TPC Backupper software to schedule regular data protection tasks.
What to consider before purchase
Check the official TerraMaster compatibility list to ensure your specific hard drive models are supported.
Note that this device does not support hardware RAID; software RAID must be configured via your OS if required.
Ensure your host device has a compatible USB port to achieve maximum transfer speeds.
Usage recommendations: To maintain optimal performance and drive longevity, place the unit in a well-ventilated area to allow the intelligent cooling system to function effectively. Always use the provided power adapter and ensure the device is safely ejected from your operating system before disconnecting the USB cable.

## Specifications

| Feature | Value |
|---|---|
| Screws included | Yes |
| DC output voltage | 12.0000 |
| DC output voltage | 12.0000 |

### Other features

| Feature | Value |
|---|---|
| Data transfer rate | 10 Gbit/s |
| Number of adapters included | 1 pc(s) |
| Compliance certificates | RoHS |

### Operational conditions

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -20 - 60 |
| Operating relative humidity (H-H) | 5 - 95 |
| Operating temperature (T-T) | 0 - 40 |

### Sustainability

| Feature | Value |
|---|---|
| Sustainability compliance | Yes |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | AC |

### Weight & dimensions

| Feature | Value |
|---|---|
| Package weight | 3100 g |
| Package height | 300 mm |
| Package depth | 186 mm |
| Package width | 275 mm |
| Weight | 1.9 kg |
| Height | 222 mm |
| Depth | 154 mm |
| Width | 179 mm |

### Power

| Feature | Value |
|---|---|
| AC input frequency | 50 - 60 |
| AC input voltage | 100 - 240 |
| Power consumption (typical) | 40.8 W |
| Power supply unit (PSU) capacity | 72 W |

### Software

| Feature | Value |
|---|---|
| Mac operating systems supported | MacOS |
| Linux operating systems supported | Yes |
| Windows operating systems supported | Yes |

### Performance

| Feature | Value |
|---|---|
| Noise level | 21 dB |
| Device class | Дом и домашний офис |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 120 mm |
| Number of fans | 1 fan(s) |
| Product colour | Black |
| Chassis type | Настольный |

### Ports & interfaces

| Feature | Value |
|---|---|
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |

### Storage

| Feature | Value |
|---|---|
| Hot-swap drive bays | Yes |
| Maximum supported storage capacity | 88 TB |
| Storage drive sizes supported | 2.5, 3.5 |
| Supported storage drive interfaces | Serial ATA |
| Supported storage drive types | HDD & SSD |
| Installed storage drive type | No |
| Number of storage drives supported | 4 |

## FAQ

### How much does the TerraMaster D4-320 4-Bay Desktop Disk Array cost, and is it available for purchase?

The price is 205.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 86 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.09.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can TerraMaster D4-320 4-Bay Desktop Disk Array be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All TERRAMASTER products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized TERRAMASTER service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: height, depth, width, device class, chassis type, supported storage drive types, installed storage drive type, number of storage drives supported, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12411627/68705488_large.webp