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PROMISE PegasusJ2i
Custom-Designed for the Mac Pro

PROMISE PegasusJ2i

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Custom-Designed for the Mac Pro
The Power of Promise Pegasus Storage, Now Inside the Mac Pro.

Internal Storage Options for Mac Pro – PROMISE Pegasus J2i- to conveniently store and speedily access upto 32TB of data over internal buses.

  • Developed by Promise for Apple
  • Fine-tuned for Mac Pro & macOS Catalina
  • Legendary PROMISE Engineering, Quality & Support


  • Custom 2 Bay enclosure and cable assembly
  • One 8TB 7200rpm SATA HDD pre-installed, pre-formatted
  • Bay and kit for optional additional 3.5” SATA HDD (to be installed by end-user)

These custom-designed systems allow for easy installation and work flawlessly within the new Mac Pro and macOS Catalina. They come with a 3-year hardware warranty and are supported by Promise’s dedicated global support team. Additional capacities and configurations should be available soon.


Capacity 8TB raw (as shipped)
Form Factor 2-Bay Internal Storage Enclosure for Mac Pro
Interface SATA3 with custom power and data cable to Mac Pro
Storage Devices One SATA 7200 rpm 8TB HDD, preformatted HFS+ Add your own 3.5” SATA HDD
Dimensions 155 x 121 x 99 mm ( 6 x 4.8 x 3.9 inch)
Weight 0.96kg / 2.1 lb ( with 1 HDD)
Warranty 3-Year hardware warranty, global support


Download the PROMISE Pegasus R4i/ J2i Datasheet (PDF).

Pricing Notes: