Cannot Connect Pegasus P4 with new Macbook Pro with M1Pro

  • Last Post 03 December 2021
Arek GRomek posted this 03 December 2021



I have my Pegasus R4 bought in 2013 I think and he used by working with my older MAcbook Pro through Thunderbolt. 

Now purchased new M1 Pro, bought a cable to transfer Thunderbol to USB-C. After connection Mac does not see that. Blue arrow on Pegasus is blinking. 

What shall I do ? 

Is Pegasus R4 supported ? 


R P posted this 03 December 2021

Hi Arek,

The M1 Monterey does not have a Pegasus driver built in. You will have to install the driver.

Please follow the instructions in the package.

The Pegasus32 Promise Utility works fine under Rosetta2 and is backwards compatible.