New MacBook Pros May Not be Compatible With Some Early Thunderbolt 3 Devices – Mac Rumors
The incompatibility was discovered by Plugable (via 9to5), who found that their TBT3-DP2X and TBT3-HDMI2X graphics adapters were not compatible with Apple’s new MacBook Pros because they use a controller chip from Texas Instruments. As a result, Plugable will be postponing its upcoming Docking Station as it works on a compatibility solution.
Update 11/1/16: Apple has chosen to prevent Thunderbolt 3 devices using currently available controller chips from Texas Instruments from enumerating and functioning on the 2016 MacBook Pros. All current Thunderbolt 3 peripherals which use this controller chip are incompatible with the new 2016 Thunderbolt 3 MacBooks (To our knowledge, this includes all currently available Thunderbolt 3 devices including our TBT3-DP2X and TBT3-HDMI2X graphics adapters. Our Thunderbolt 3 cables do not require this chip, and therefore are compatible.)
Because of this, we’ve made the difficult decision to postpone our TBT3-UD1 Docking Station as we evaluate what is necessary to make this docking station MacBook-compatible. Our Flagship TBT3-UDV dock with Power Delivery/Charging is using the next generation controller chip from TI, and will be compatible with the 2016 Thunderbolt 3 MacBooks.
Because some existing or soon-to-be available Thunderbolt 3 accessories may not be compatible with the new MacBook Pro, customers who are looking to purchase docks, adapters, and other products should double check with manufacturers to ensure compatibility.
Many products on the horizon use Intel’s newer Thunderbolt 3 chipset and won’t be affected, and it’s also possible Apple could push a firmware update to add support for accessories with the older Texas Instruments controller.