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Promise Technology 18TB Pegasus2 R6 Thunderbolt 2 Raid Storage Array

B&H # PRP2R6HD18US Mfr # P2R6HD18US
In Stock
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Sugg Retail Price: $2,909.00
Product Highlights
  • 18TB Storage Capacity
  • Dual Thunderbolt 2 Ports
  • 6x 3TB 7200 rpm Internal SATA Drives
  • 6 Hot-Swappable Drive Bays
  • Pre-Configured in RAID 5 Mode
  • Supports RAID 0, 1, 5, 6, 10, 50
  • Daisy-Chain Six Thunderbolt 2 Devices
  • Compatible with Time Machine in OS X
  • Mac Compatible

The Promise Technology 18TB Pegasus2 R6 is a Thunderbolt 2 RAID storage array designed for simultaneous streaming, editing, and backup of high-resolution videos and large multimedia files. This storage array's Thunderbolt 2 interface offers high-speed connectivity. The Pegasus2 R6 stores up to 18TB of data and consists of six 3TB 7200 rpm SATA drives. Actual storage capacity will differ according to the RAID configuration. These drives are hot-swappable for easy access and come pre-configured in RAID 5 mode, which is optimized for data protection, capacity, and performance. RAID levels 0, 1, 5, 6, 10, and 50 are also supported; each level offers configuration options for capacity, data protection, redundancy, and speed.

The Pegasus2 R6 storage array has dual Thunderbolt 2 ports, one port for direct system attachment and another port for daisy-chaining up to 6 Thunderbolt 2 devices. This storage is formatted in the HFS+ file system for Mac and is compatible with Time Machine in OS X, which automatically backs up your entire Mac system.

Thunderbolt 2
The Pegasus2's Thunderbolt 2 interface is sufficient for handling and accelerating 3D or 4K (UHD) workflows. Thunderbolt 2 uses the same cable as the previous generation but has double the available bandwidth for a maximum throughput of 20Gb/s.
4K Workflows
The bandwidth of Thunderbolt 2 and the Pegasus2 is designed to give professionals the ability to edit and view live 4K streams while backing up the same file to a single or daisy-chained Pegasus2 storage array system.
Capacity 18 TB
Ports 2x Thunderbolt 2
Transfer Rate Not Specified By Manufacturer
Array Type Direct Attached Storage
Bays 6
Drives 6x 3 TB SATA
Drive Speed 7200 rpm
RAID Levels 0, 1, 5, 6, 10, 50
Expansion Up to six Thunderbolt 2 devices
System Requirements Mac OS X 10.8.5 or higher
Dimensions (HxWxL) 9.9 x 9.6 x 7.3" (25.1 x 24.4 x 18.5 cm)
Weight 20.1 lb (9.1 kg)
Promise Technology 18TB Pegasus2 R6 Thunderbolt 2 Raid Storage Array
  • Thunderbolt Cable
  • Limited 2-Year Warranty

    by PowerReviews
    Promise Technology18TB Pegasus2 R6 Thunderbolt 2 Raid Storage Array

    (based on 3 reviews)

    Ratings Distribution

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    Reviewed by 3 customers

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    Review of the Pegasus2 R6

    By TNVideo

    from Raleigh

    About Me Multimedia Professional, Tech Savvy

    Verified Buyer


    • Excellent Gui Utility
    • Fast Connectivity
    • High Data Transfer Rate
    • High Quality Construction
    • Quiet


      Best Uses

      • 4k Video Editing
      • Large Projects
      • Multimedia

      Comments about Promise Technology 18TB Pegasus2 R6 Thunderbolt 2 Raid Storage Array:

      I purchased the Pegasus2 R6 to use with a new Mac Pro (late 2013) for editing 4K video. This drive comes preconfigured as a Raid 5 properly formatted for the Mac. After hooking up the Pegasus2 it automatically begins synchronizations which, for this 18TB array, required about 8 hours. The Raid 5 system is then ready for use.

      I found the expected high data transfer rates of about 720 MB/sec for this raid system. The Pegasus2 is very quiet in operation producing only a small amount of noise as the disks spin up. During writing to or reading from the array, the system is virtually inaudible.

      The Pegasus2 can be configured and controlled from the Promise Utility that comes installed on the array. This utility has an excellent interface that allows the user to address every aspect of array operation including the sophisticated power management features of The Pegasus2.

      The only issue that I had upon first using the Pegasus was that the hard drives were spinning down frequently when not being used for a few minutes. This caused a delay of about 10-15 seconds for the hard drives to spin up when they were addressed. I was able to correct this via commands provided by Promise and entered via Terminal commands directly to the CLI interface elf the Pegasus2. I have been told by Promise that the next version of the Promise Utility will allow this to be done completely from within the utility without the need to use a command line interface.

      I believe the Pegasus2 R6 is a perfect companion to the new Mac Pro for editing 4K video and other purposes where high data transfer speeds and large disk capacity are required.

      • Primary use:
      • Personal
      • Computer Platform:
      • Mac

      Share this review


      First impressions

      By Skyon

      from California

      Comments about Promise Technology 18TB Pegasus2 R6 Thunderbolt 2 Raid Storage Array:

      I use it primarily to store and access my archive of hd footage, backup my work and system drives.

      Im happy with the speed i can view and access files, definitely turn off spotlight once this thing starts to fill up to reduce access time.

      Also good to note, we have a recording studio and the fan hum is loud enough to warrant a closet. I have it in a cabinet and have been checking temperature levels, which up until now is doing fine without the need for additional cooling, but its also winter.

      One thing i wish is that it would be possible for the thunderbolt to pass through without turning the power on.

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      Beautifully Quiet

      By Dan Bihn

      from Fort Collins, CO

      About Me Multimedia Professional, Tech Professional

      Verified Buyer


      • Durable
      • Fast Connectivity
      • Quiet
      • Reliable


        Best Uses

          Comments about Promise Technology 18TB Pegasus2 R6 Thunderbolt 2 Raid Storage Array:

          Works as advertised. Very elegant – both hardware and software.

          The fans are virtually silent – a huge improvement over my noisy G-Tech G-Speed Q.

          • Primary use:
          • Business
          • Computer Platform:
          • Mac

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