Quality Solutions. Expert Support. Since 1988.


4 Bay Storage Array

Mac | PC | USB 3.0 | Thunderbolt
Mini in Size Only
It's a Drobo, so by definition it's easy-to-use. Now it's also the fastest portable storage array-with cutting-edge Thunderbolt and USB 3.0 connectivity and innovative use of solid state drives (SSDs). Along with the power of BeyondRAID, it delivers all the power and flexibility of its larger sibling, Drobo 5D, in a miniaturized package.

Whether you're working at your desktop, shooting and editing photos or videos onsite, or traveling to the next location, it's the world's first high-performance and protected portable storage array. So now you can take and access your valuable digital assets wherever you go. Easiest, fastest, safest, smallest-Drobo Mini is unique and unexpected-but frankly that's what you should expect from Drobo.
Amazingly Mini
Drobo Mini has everything that's in the high-capacity Drobo 5D in a package that's the size of a deli sandwich. Made of a cutting-edge metallic carbon fiber with a soft-touch rubberized finish, Drobo Mini is small, rugged, and feels as cool as it looks. From the modern materials to the wraparound light indicators to the drive bay design, Mini is truly big storage in a small box.

Weighing in at about 3 pounds (fully loaded with drives installed), you can now carry up to 3TB of usable and protected capacity in your travel bag. To make Drobo Mini as portable as possible, there's an optional carrying case that holds the Drobo, power supply, and a connectivity cable.
First Drobo with 2.5" Drives
Drobo Mini takes 2.5" drives-that's what makes it portable. Four hot-swappable drive bays support drives of any capacity. No carriers or screws are needed to insert drives into a Drobo and the Drobo Mini is no different. An innovative new design allows drives to click in and out like a ballpoint pen.
Since 2.5" drives are primarily used in laptop computers, they're designed to be portable. Because of this, you can pick up and move Drobo Mini around with confidence.
Data Protection and Expandability Made Simple
Built on award-winning BeyondRAID technology with single- or dual-drive redundancy, Drobo Mini protects your data without any user interaction, even in the event of multiple drive failures.

Drives can be added or hot-swapped on-the-fly for storage expansion with zero downtime. If you're running low on space, the wraparound lights on the front tell you what to do. Just add a drive in an empty bay or remove a smaller drive and replace it with a larger one.
Power of Thunderbolt & Flexibility of USB
Thunderbolt I/O technology provides performance that no personal storage has been able to achieve, especially one that's portable. This allows you to move large amounts of data in a fraction of the time it used to take. Visit the Thunderbolt technology site to learn more about this exciting new way to connect devices.

Drobo Mini is equipped with dual Thunderbolt ports for daisy chaining. Connect up to six Thunderbolt devices and/or a non-Thunderbolt monitor at the end of the chain. This allows even the most portable laptop computers access to high-performance storage while retaining connectivity to other devices and an external monitor. The bidirectional 10 Gbps performance of Thunderbolt allows all devices in the chain to achieve maximum throughput.

Drobo is the only storage array that offers Thunderbolt AND USB 3.0. This latest generation of USB also offers high-performance connectivity and is backward compatibility with any computer running compatible versions of Mac OS X or Windows.
Capacity AND Performance
Data-Aware Tiering technology, usually reserved for business-class storage solutions, is also available in this portable Drobo. It intelligently uses the high-performance flash in SSDs to accelerate performance of the storage array, allowing applications such as Adobe Premiere and Apple Aperture fast access to data. To keep capacity of the Drobo at a maximum, the Drobo Accelerator Bay accepts an industry-standard mSATA SSD, leaving all four 2.5" drives bays available for high-capacity HDDs.

If getting the fastest performance possible is your thing, you can also load up every drive bay with SSDs. That would be a screaming fast portable Drobo!
Power Protecting Your Critical Data
Drobo doesn't just protect you from a drive failure, but also from potential data loss after a power outage. Often found only in arrays that cost tens of thousands of dollars, Drobo Mini includes a battery that protects all data in memory, or cache, that is, data on its way to the drives. Yes, Drobo Mini actually has room for a big battery (barely)!

When power spontaneously goes away, the battery keeps the Drobo alive long enough for the data to be written to non-volatile storage, ensuring your important information is safe. This battery recharges itself and is designed to last for the life of the product.


  • Drobo Mini
  • 1 m (3.3 ft) Thunderbolt cable
  • 1 m (3.3 ft) USB 3.0 cable
  • 1 m (3.3 ft) power cord with power supply
  • Quick Start Card


Product Specifications:

Supported Drive Type

  • Up to four (4) 2.5" SATA I / II / III hard disk drives or solid state drives that are between 7 mm and 9.5 mm in height (sold separately) and one (1) mSATA solid state drive
  • Drives of any manufacturer, capacity, spindle speed, and/or cache can be used. No carriers or tools required.
  • Expandable by adding drives or hot-swapping drives with larger ones.

Interfaces Supported

  • Thunderbolt
  • USB 3.0 (USB 2.0 backwards compatible)

Port Configuration

  • 2 Thunderbolt Ports
  • 1 USB 3.0 Port

BeyondRAID Features

  • Thin Provisioning
  • Instant Expansion
  • Mixed Drive Size Utilization
  • Automatic Protection Levels
  • Dual Disk Redundancy
  • Virtual Hot Spare
  • Data Aware
  • Drive Re-ordering

Operating System Support

  • Mac OS X 10.7.x Lion
  • Mac OS X 10.8.x Mountain Lion
  • Windows 7 SP1 32 and 64 bit
  • Windows 8 32 and 64 bit

File System Options

  • Mac OS X: HFS+
  • Windows: NTFS


  • Dual, fixed, variable speed cooling fans

Power Supply

  • External Power Supply:
    AC Input - 100-240VAC~2A, 50-60Hz;
    DC Output - 12V, 4.16A, 50W max

External Case Dimensions

  • 7.3 in (W) x 7.1 in (D) x 1.8 in (H) (185mm x 180mm x 46mm)

Drive Weight (no accessories)

  • 2.2 pounds (1.00kg)

Operating Environment:


  • Varies depending on drive mechanisms installed

Relative Humidity

  • Varies depending on drive mechanisms installed


  • Varies depending on drive mechanisms installed

MTBF (hours)

  • Varies depending on drive mechanisms installed
Manufacturer provided specifications for Data Robotics, Inc. p/n DRMINI1A21 UPC#: 094922386199


Customer Ratings

Write a Review 5 / 5 4 out of 4 (100%) reviewers would recommend this product
Reviewer: Anonymous Location: Buffalo NY Age: 45-54 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 Could Not Ask For More... November 8, 2015 I was skeptical when I read the instructions, but I was wrong! This is an amazing device for on location shooting. I have used many different sized drives from 4 250GB WD, to 4 1TB SG spinners. I think the 128GB MSATA makes the speed possible. It's one of the best investments if you need a thunderbolt connection due to the Size of your files. You get to decide how large you make it!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: austalia Age: 55-65 Experience Level: Hobbiest Owned Product: over 6 months
Rating: 5/5 drobo mini July 16, 2015 Excellent alternative to other storage devices when you need a quick and simple storage device with the flexibility of massive storage and excellent i/o for thunderbolt connection

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Burleigh Heads, QLD Australia Age: 35-44 Experience Level: IT Professional Owned Product: over 6 months
Rating: 5/5 The Drobo rocks! August 27, 2014 Once you've whacked a few drives into the drobo and got the setup app installed on your mac, just configure and use. Thunderbolt is great and you can daisy chain more Thunderbolt gear off the back port. It's quick if you use fast 2.5" drives and with one drive failure protection 4 x 1TB 2.5" drives gives you 3TB total capacity. You can also use add an mSATA SSD for extra caching. Even with the overhead of data protection, I still see over 150MB/s reads and writes to the volume.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Concepción, Chile Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 A great product easy to use May 15, 2014 I would recommend this item to a friend!
Drobo Mini 4 Bay Storrage Array Mfr P/N: DRMINI1A21 OWC SKU: DRODRMINI1A21 The world's smallest, most advanced storage array Drobo 1 Year Limited Warranty Ships: 24-48 hrs Only $649.00MacSales.com Price $634.99
Add to CartData Robotics, Inc. DRMINI1A21, Click to Buy Now