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Drobo

Drobo 4-Bay (3-Gen) 3.5" SATA/SSD Enclosure, USB 3.0, Ethernet, RAID

SKU: DRBR3A21 MFR: DDR3A21
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About the Drobo DDR3A21

The Drobo 4-Bay (3-Gen) 3.5" SATA/SSD Enclosure is the latest generation of the award-winning platform that started it all. It holds true to the unique design and simplicity that has made Drobo the best desktop storage solution for storing and protecting all your data. No storage expertise is required to ensure your data is always safe and protected.

Inside every Drobo is the revolutionary BeyondRAID storage technology that protects data against a hard disk crash, yet is simple enough for anyone to use. As long as you have more than a single disk in Drobo, all data on Drobo is safe no matter which hard disk fails. There's no need to worry about anything else.

Time Machine and Drobo: A Perfect Pairing
Apple's Time Machine was designed to make backing up your files simple and painless. Pairing Time Machine with Drobo improves your data protection by ensuring your data is safe in the event of hard drive failure.

Control How Much Storage Time Machine Uses
With Drobo you can easily control the maximum storage space available for Time Machine backups through Drobo Dashboard. When you install a Drobo, Drobo Dashboard prompts to see if you want to create a dedicated storage volume for Time Machine's use, allowing you to set the size of this volume.

Upgrading With the Remarkable Drobo
Drobo takes upgradability to the next level. Not only can you upgrade capacity with no downtime by adding new drives or replacing smaller drives with larger ones, you can seamlessly upgrade to a new Drobo by simply removing the disk pack from your current system and moving it to a new Drobo. Upgrading not only gives you an instant performance boost, but also delivers all the other benefits of the new 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. When power spontaneously goes away, Drobo moves any in flight data to onboard flash in your Drobo so it will be protected and moved to your disk drives once power is restored. This ensures your important information is safe and sound. Even better, your battery recharges itself and is designed to last for the life of you Drobo.

Leave Your Limitations Behind. Go BeyondRAID
Drobo's with BeyondRAID are also self-healing and have virtual hot-spares. If a drive happens to fail, Drobo will automatically re-layout the data to return to a protected state without disruption. BeyondRAID along with Smart Volumes deliver next-generation storage technology by bringing together enhanced data protection, reliability, expandability and ease-of-use.


Drobo DDR3A21 Includes

  • Drobo 4-Bay (3-Gen) 3.5" SATA/SSD Enclosure
  • 2 m (6.6') USB 3.0 Cable
  • 6' (1.8 m) Power Cord with Power Supply
  • Drobo 1 Year Warranty

Drobo DDR3A21 Specifications

Connectivity 1 x USB 3.0 port
Capacity Up to four (4) 3.5"SATA II / III hard disk drives or solid state drives (sold separately)
Drives of mixed capacity, spindle speed and/or cache can be used. No carriers or tools required. Click here for drive recommendations
Expandable by adding drives or hot-swapping drives with larger ones. Use the Capacity Calculator to estimate available storage in various configurations
RAID Features Thin Provisioning
Instant Expansion
Mixed Drive Size Utilization
Automatic Protection Levels
Dual Disk Redundancy
Virtual Hot Spare
Data Aware
Drive Re-ordering
Management Drive bay indicator lights, capacity gauge, status lights
Drobo Dashboard version 2.3 or later
Operating System Support Mac OS X 10.7 and above
Windows 7 SP1 32 and 64 bit
Windows 8/8.1 32 and 64 bit
File System Options Mac OS X: HFS+
Windows: NTFS
Hardware Features Carrier-less Drive Bays
Power Fail Protection
Kensington Lock Port for Security (lock not included)
Software Features Data-Aware Tiering
Drive Spin Down
Dim Lights
Power and Cooling External Power Supply: AC Input - 100-240VAC-2A, 50-60Hz; DC Output - 12V, 12.5A, 150W max
Single, fixed, variable speed cooling fan
Dimensions (W x H x D) 5.9 x 7.3 x 10.3" / 14.98 x 18.54 x 26.16cm
Weight 8.5lbs / 3.85kg (without hard drives, power supply, or packaging)
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