Discontinued - CalDigit HDOne

Serious Storage. Seriously Affordable.

The CalDigit HDOne is an eight drive hardware RAID system that features an Intel XScale processor and 256MB of fixed cache. The HDOne supports RAID 0, 1, 5, 6 and JBOD, and can reach sustained speeds of 440MB/s with RAID 5 protection. The direct connect external PCIe connection is extremely fast. The HDOne is ideal for users that desire the ultimate in performance on a budget.

Direct Connect

The HDOne uses a direct connection to the latest PCIe technology found in today's modern workstations. PCIe allows a throughput of up to 20Gb/s without latency or conversion. This direct connection makes the HDOne extremely fast, providing a sustained throughput of over 440MB/s in RAID 5.

The HDOne comes with the high speed PCI-Express interface card along with a substantial cable connection for added strength, long-term protection, as well as performance. The secure latch will also prevent the cable from being pulled out accidentally and ensure workflow is uninterrupted.

Hardware RAID

The HDOne features true hardware RAID, which provides an independent CPU and dedicated cache memory to manage the RAID volume. The dedicated processor eliminates additional strain from the host system's CPU, allowing applications full access without added strain from a software based RAID system.

The HDOne features an Intel XScale processor with 256MB of fixed cache and provides Hardware RAID support for RAID levels 0, 1, 5, 6 and JBOD.


Out of the box, the HDOne has been configured for RAID 5, allowing it to operate even if a single drive fails. To further protect important data, the HDOne comes with RAID Shield. RAID Shield is the configuration and monitoring system that allows you to change RAID levels. For added protection, RAID 6 can sustain two drive failures without data loss, providing dual parity protection.

Generous Capacity

The HDOne includes eight CalDigit certified SATA II drives providing generous speed and capacity. This results in performance that meets the needs of the most demanding software. With an external PCIe connection to the host, the HDOne leverages the latest 20Gb/s ePCIe technology. The HDOne is a high performance storage solution with capacities starting at 8TB.

Smart & Manageable

Each HDOne features an environmental processor that monitors and manages all aspects of the system, such as the hard drives, RAID arrays, controller cache, fan, temperature, power supply and enclosure conditions. In the event of a problem, the HDOne is capable of sending out email notifications.

The HDOne comes with RAID Shield, CalDigit's powerful and easy to use RAID administration software. RAID Shield is capable of building multiple RAID sets on the fly with a variety of options such as: cache sizes, capacities, slices and a logical unit number. RAID Shield is entirely based on the TCP/IP architecture. This means that each HDOne can be monitored and managed from anywhere on the Intranet. Once setup, RAID Shield provides at-a-glance monitoring for multiple HDOne systems either locally or remotely.

Visual Aid

Quickly monitoring the status of the HDOne is easy with CalDigit's intuitive LED indicator lights. The HDOne's indicator lights are conveniently located on the front panel of the enclosure. With just a glance, the user can easily monitor the status of the HDOne. There is also an audible alert signal, a system alert, as well as email notification. For more information, please refer to the "How To section."


Active Sustained Transfer Technology (ASTT) was designed by CalDigit's top engineers to provide the ultimate in sustained performance. ASTT ensures that there is always a constant throughput. With ASTT, the performance of your HDOne is always kept in check, ideal for HD video and beyond.

Laptop Support

The HDOne is, beyond doubt, a truly mobile unit. In fact, CalDigit was one of the first companies to include configuration for laptops with its RAID storage systems. Because the HDOne is hardware RAID, it can work with any laptop that has a PCI Expresscard/34 slot with the addition of the eLane-1ex Expresscard/34. Whether you are at home, at the studio, or on the road the HDOne provides the freedom to work anywhere.

Advanced Modular Design

The HDOne has eight hot-swappable drive modules allowing for easy replacement and expansion. This added flexibility makes it easy to archive data. Instead of storing an entire enclosure, with the HDOne, only the drive modules need to be stored. The HDOne also features user replaceable fans and power supply.

Legendary Support

It's just the beginning after you purchase your HDOne. Like all of CalDigit's great products, the HDOne is made from quality components and made to last. The HDOne also comes with CalDigit's legendary technical support.

Instead of filling out forms or listening to an automated machine, customers get to talk to real people. CalDigit's technical team knows more than just storage, they understand the applications used in today's popular workflows. Unlike other companies who simply issue RMA numbers whenever a problem arises, the CalDigit technical support team will address the issue and hit the root of the problem. They understand the horrors of down time and work quickly and efficiently every step of the way to get the products up and running again.

CalDigit and its knowledgeable technical support team are dedicated to its customers. If there is a problem, CalDigit aims to provide the best solution possible.

CalDigit builds and manufactures most of the major components used in the CalDigit HDOne and uses only quality hard drives from leading manufacturers.

Satisfaction Guaranteed

CalDigit is committed to providing users with the best possible experience. Because CalDigit has designed and built the HDOne from the ground up, they can stand behind it with a 100% Satisfaction Guarantee. CalDigit prides itself in providing the highest quality customer service and knows the importance of building long lasting relationships. If you are not completely satisfied with the HDOne, CalDigit offers a 30 day money back guarantee.