Check the listing for details. Flash Service Gigabyte Titan Ridge Alpine Ridge For Mac Pro 4,1 5,1. Listed at 68.95 USD. GC-Titan Ridge 2.0 & Alpine ridge Thunderbolt 3 card flash service for Mac ProFor Mac Pro 3,1/4,1/5,1 or Hackintosh.Support cold boot. No need of Windows for it to work on Mac OS!Plug 'n play.Works on Mac OS or Windows. You ship your Titan Ridge or Alpine Ridge to us on your label. We do flash and ship back on our label. What does work:Universal Audio ApolloWavesDiGiGrid IOSAntelope Orion 32+ (via USB-C)Discreet 8 (via USB-C)Focusrite Clarett 8Pre [X]Motu 828esBlackmagic UltraStudio MinirecorderAkitio Node Pro Thunderbolt 3Kanex USB3Lynx AuroraApogee Element 46 / EnsemblePresonus (excpet Quantum)East Thunderbolt AdapterExternal drives (Some need reboot)LaCie TB1 drives (with Apple TB3 to TB2 adapter)Luna (with newest driver)Elgato Thunderbolt 3 Pro DockElgato Thunderbolt 2 DockBelkin Thunderbolt 1 DockBelkin Thunderbolt 3 Dock MiniCalDigit Thunderbolt 3 Mini DockHoneywell USB-C Dock What does not work:Promise Pegasus R6 (RAID Enclosure)Drobo (storage)Presonus Quantum (other Presonus should be fine)Antelope Audio (via Thunderbolt)Slate VRS8 (not for Mac Pro, works with most Hackintosh) Compatible MacOS:10.12.6 Or newer Need USB 2.0 support? Please check our kit w/ extra USB 2.0 header: https://www.ebay.com/itm/275123560972 Key difference between Titan Ridge and Alpine Ridge:Titan Ridge has a DisplayPort while Alpine Ridge has an HDMITitan Ridge can supply 100w power (with power cable connected) while Alpine Ridge can supply 36w.