TerraMaster D4-320U: Ultra-Short Rackmount Expansion Enclosure to Solve Storage Space and Capacity Challenges

In today’s era of exponential data growth, storage space and capacity limitations remain a persistent challenge for home users, small offices, and IT environments alike. Traditional storage devices are often bulky and complicated to install, while insufficient storage capacity can be a major bottleneck.

Understanding these pain points, TerraMaster introduces the D4-320U, an ultra-short 4-bay rackmount USB 3.2 10Gbps expansion unit that redefines storage expansion with its innovative design and powerful performance. Whether you need additional storage for your TerraMaster NAS, PC, or server, the D4-320U provides a seamless and efficient solution.

1. Ultra-Short Depth Design – Saves 50% of Space

The D4-320U revolutionizes rackmount storage convenience with its ultra-short 9.49-inch (241mm) depth, making it 50% shorter than traditional rackmount enclosures and weighing only 3.2kg. Whether deployed in a data center, storage cabinet, office, or even a compact workspace, the D4-320U optimizes space utilization to the fullest.

2. Effortless NAS and Server Capacity Expansion

With high-speed USB connectivity, the D4-320U easily connects to TerraMaster NAS devices, enabling fast data transfer and seamless file sharing. For existing TerraMaster NAS users, the D4-320U is the perfect expansion solution, while users who use PC and server can benefit from cost-effective, high-capacity storage expansion.

3. 10Gbps High-Speed Data Transfer

Equipped with a USB 3.2 Gen2 interface, the D4-320U delivers up to 10Gbps transfer speeds. Whether using HDDs or SSDs, users can experience exceptional read/write performance, ensuring fast data access and transfer efficiency—ideal for professionals and enthusiasts handling large files and high-bandwidth tasks.

4. Massive 88TB Storage Capacity

Supporting up to four hard drives, the D4-320U provides an impressive 88TB of storage capacity. From home media libraries and business backups to creative workflows, the D4-320U meets diverse storage needs with ease.

5. Silent Operation with Efficient Cooling

Beyond its powerful performance, the D4-320U features a silent design and an advanced cooling system, ensuring stable operation over extended periods without excessive noise. Whether in a home office or professional workspace, the D4-320U provides a quiet and reliable storage solution.

One of the most exciting aspects of the D4-320U is its user-friendly design. It can be directly placed into a standard server rack without the need for additional rail kits, saving space and improving storage efficiency in data centers.

Five key Advantages of the D4-320U:

Breakthrough Space-Saving Design: The ultra-short 9.49-inch 1U rackmount form factor makes it perfect for tight spaces, addressing storage constraints effortlessly.

Quick & Easy Installation: With a simplified setup process, the D4-320U eliminates complex installation steps, allowing users to deploy it quickly while saving time and effort.

Flexible & Scalable Expansion: Supporting four drives with up to 88TB of total storage, the D4-320U enables easy expansion to accommodate growing data demands.

Significantly improved efficiency: With USB 3.2 Gen2 10Gbps connectivity, the D4-320U delivers ultra-fast data transfers, effortlessly handling large file movements and high-load tasks for boosted productivity.

Whisper-Quiet Operation: Designed with low-noise components, the D4-320U ensures a distraction-free environment, perfect for both home and office settings.

More than just a storage expansion unit, the D4-320U is a game-changer in efficient and high-performance storage solutions. With its ultra-short depth, exceptional compatibility, user-friendly installation, and outstanding performance, it’s the perfect choice for NAS users, small businesses, and IT professionals looking for reliable and scalable storage.