MacBook 13 Pro 2020, Sonnet eGFX 550, 5500XT not working
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MacBook 13 Pro 2020, Sonnet eGFX 550, 5500XT not working  


Evgeniy Grechenok
New Member
Joined: 1 week ago

Hello everyone,

My MacBook config is:

  • 2.3GHz quad-core 10th-generation Intel Core i7 processor, Turbo Boost up to 4.1GHz
  • 13-inch Retina display with True Tone
  • Touch Bar and Touch ID
  • Intel Iris Plus Graphics
  • 32GB 3733MHz LPDDR4X memory
  • 1TB SSD storage
  • Four Thunderbolt 3 ports
  • Big Sur 11.1

My eGPU is:

  • Sonnet eGFX BOX550

My graphics card:


Sorry for my english :'(

After turning on eGPU and connecting it to my MBP:

  • the blue diode turns on and off after a few seconds on eGPU
  • MBP does not recognize and does not see Sonnet or Graphics card
  • MBP power via eGPU works

TB3 cables tested, work exactly

This eGPU worked with a iMac and 1070 and 2080 via bootcamp a while ago.

Help is needed :'(


To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.