PROMISE Pegasus2 R4 8TB (4 x 2TB) Thunderbolt 2 RAID System

PROMISE Pegasus2 R4 8TB (4 x 2TB) Thunderbolt 2 RAID System

Product Information

  • Overview

    The premier storage choice for creative audio/video professionals and multimedia enthusiasts around the globe, the PROMISE Pegasus2 can now deliver even faster performance with the new 20Gb/s Thunderbolt 2 technology, while assuring enterprise-class reliability and ease of use. The Pegasus2 R4 8TB RAID system offers an easy entry point into the Thunderbolt 2–based storage family.

    Incredible speed for creative workflows

    The Pegasus2 is the fastest Thunderbolt 2 storage solution available, delivering raw power for audio/video/graphics amateurs and professionals alike to experience new capabilities with ease. Final Cut professionals can ingest, edit and play back multiple streams of ProRes 422 (HQ), ProRes 4444 as well as uncompressed HD 10-bit and 12-bit video, while protecting valuable workflows, audio sessions and other creative media content.

    Simple, flexible and cost effective backup solution for home use

    Fast, safe and reliable external storage is essential when protecting your valuable files such as music, photos and videos. The hardware RAID capabilities of the Pegasus2 family protects all the memories that were meant to last a lifetime that could be impacted from single drive failures, while simultaneously providing data protection and high reliability. The Pegasus2 family provides fast performance for popular applications such as iTunes, iPhoto, iMovie, GarageBand, Photoshop and media centre applications. Back up your irreplaceable digital media, documents, and also your entire computer or workstation to Pegasus2 with Time Machine in OS X.

    Easy to use, quiet and eco-smart

    Pegasus2 systems are user friendly and come preconfigured straight out of the box — so you can just plug in and start using. Status, management tools and advanced settings can be accessed via the built-in Promise Utility. Engineered to be eco friendly and RoHS compliant, Pegasus2 is perfect for SOHO and SMB environments.

    Enterprise-class RAID protection

    Pegasus2 features enterprise-level RAID storage protection for your data, supporting a broad range of RAID levels as well as automatic error handling.

    About Thunderbolt 2

    Thunderbolt is a revolutionary I/O technology that supports high-resolution displays and high-performance data devices via one simple port and a cable that carries both DisplayPort and PCI Express data. And it’s standard on every Mac.

    PCI Express is the technology that links all the high-performance components in a Mac. And it’s built into Thunderbolt, which means you can get PCI Express speed outside the box.

    With Thunderbolt 2 now built into the new Mac Pro and MacBook Pro with Retina display, you can connect up to three 4K displays at once. Thunderbolt 2 gives you up to 20 Gbps in both directions, allowing for super-fast data transfer between peripherals. You also have enough bandwidth to daisy-chain multiple high-speed devices without using a hub or switch.

    Thunderbolt also provides double the power of USB 3.0, delivering 10 watts to peripherals for improved performance on the go.

  • Highlights

    • 8TB of raw capacity (5.7TB configured RAID 5 and formatted with HFS+)
    • Advanced RAID engine, supports RAID 0, 1, 5, 6, 10
    • Robust error handling provides superior data protection
    • Reliable, rugged yet elegant enclosure, ultra-quiet design
    • Two Thunderbolt 2 ports for daisy-chaining up to six Pegasus units, Apple Thunderbolt Displays or Mini DisplayPort devices
    • Hot-swappable bays for effortless drive access and serviceability
    • Built-in Promise Utility for systems management and advanced settings
    • Backward compatible with 10Gb/s Thunderbolt hosts and devices
  • Did you notice?

    Pegasus2 systems come pre-configured straight out of the box — so you can just plug in and start using them.
  • Apple Recommends For

    Take advantage of 20Gb/s Thunderbolt 2 performance for creative audio/video projects on your Mac Pro.
  • What's in the Box?

    • PROMISE Pegasus2 R4 with four 2TB 7200-rpm drives
    • Thunderbolt cable
    • Power cable
    • Quick start guide
  • Tech Specs

    • Other Features: RAID support, Time Machine compatible
    • Connections: Thunderbolt, Thunderbolt 2
    • Power: 78W max load (read and write); 55W idle mode
    • Power Source: External power supply
    • Height: 19.2 cm/7.56 in
    • Width: 18.7 cm/7.36 in
    • Weight: 6.9 kg/15.3 lb.
    • Length: 25 cm/9.84 in
  • System Requirements


    • OS X v10.8.5 or later (OS X Mavericks ready)
    • Available Thunderbolt port
  • Manufacturer Information

    Part Number

    • Mfr. Part Number: F40SR4R00100000
    • UPC or EAN No.: 704118095742


    • Note: Apple's One-Year Limited Warranty does not apply to products that are not Apple-branded, even if packaged or sold with Apple products. Non-Apple-branded products may have the benefit of a manufacturer's warranty provided by the product manufacturer — please see your product box and literature for details. Benefits under the manufacturer's warranty are in addition to rights provided by consumer law. For details, click here.
    • Warranty: Two years; extended warranty options are available. Please contact Promise for details.

Ratings & Reviews

Rating Breakdown (4.5 average)
Number of stars Percentage Number of reviews
  • Excellent storage, but at a premium price

    5.0 out of 5 stars

    My Pegasus 8 TB drive is close to a perfect storage solution: very fast, reliable and safe. One of the very few problems (besides My Pegasus 8 TB drive is close to a perfect storage solution: very fast, reliable and safe. One of the very few problems (besides the high price) is the annoying running noise that it makes, so I have placed it on a low shelf, out of sight, with a long cable. The other big problem is that the unit loses data connection with the Mac, whenever a cell phone is placed in close vicinity. Of course, this also makes OS X go berserk, accusing me of ejecting the drive in the wrong way (which I didn´t). Now I have learned, the hard way, to keep my iPhone at a distance of at least one metre from the Pegasus at all times. With this in mind, everything is honky-dory!

    • Written by from SAVONLINNA

    6 of 6 people found this useful

    Was this useful? Excellent storage, but at a premium price
  • Very good, but not perfect

    4.0 out of 5 stars

    The build quality is excellent, as it should be at this price for desktop storage.

    Performance is very good - over 500MB/s stai The build quality is excellent, as it should be at this price for desktop storage.

    Performance is very good - over 500MB/s stained on sequential workloads, and reasonable performance on random I/O too. To be fair the random I/O is never going to be a match for SSD with SATA HDD's, but if you want to the drives can be replaced with SSD's.

    My only real gripe with this unit is the noise. It's not terrible in a way that Drobo's are sometimes, but it's definitely noticeable. On my desk I also have a Synology NAS located approximately the same distance away on the other side of the desk. I can't barely hear this, even in a very quiet room (late on a night with the clock ticking in the background). I guess I'll just have to buy a longer cable and move the Pegasus further away from me.

    • Written by from FELTHAM

    23 of 24 people found this useful

    Was this useful? Very good, but not perfect

Questions & Answers

Answers from the community