Apple's Thunderbolt 2 to Thunderbolt 3 adapter connects legacy accessories to new MacBook Pro USB-C
Supplementing connectivity of older devices to Apple's new MacBook Pro family, the company has also released a Thunderbolt 2 to Thunderbolt 3 adapter, allowing users with older Thunderbolt peripherals to connect them to the newer connection standard.

The product connects older 10 Gbit/sec dual-channel original Thunderbolt or 20 Gbit speed Thunderbolt 2 peripherals to the Thunderbolt 3 port with the USB-C connector as found on the new MacBook Pro. However, it will not allow Thunderbolt peripherals to be connected to USB 3.1 Generation 1 connectors, as found on the 2015 and 2015 MacBook.
The adapter is available now for $49 from the Apple online store, and will deliver November 4 with Apple's fastest delivery. AppleInsider has spoken with Apple retail store staff, who have informed us that the adapter will be in stock no later than Nov. 1 for local purchase.

The product connects older 10 Gbit/sec dual-channel original Thunderbolt or 20 Gbit speed Thunderbolt 2 peripherals to the Thunderbolt 3 port with the USB-C connector as found on the new MacBook Pro. However, it will not allow Thunderbolt peripherals to be connected to USB 3.1 Generation 1 connectors, as found on the 2015 and 2015 MacBook.
The adapter is available now for $49 from the Apple online store, and will deliver November 4 with Apple's fastest delivery. AppleInsider has spoken with Apple retail store staff, who have informed us that the adapter will be in stock no later than Nov. 1 for local purchase.
Comments
Thanks, but no thanks. I use a 12TB TB2 Promise RAID system and there is no way in hell I'm going to go "cheap" and take a chance with my data on some chinese knockoff because I wanted to save a few bucks. Considering how much Thunderbolt devices cost, that's cheap for the peace of mind.
https://eshop.macsales.com/shop/usb-c/owc/usb-c-dock
I would keep my eye on them too for future dock options.
This is supposed to help people who have previously invested in Thunderbolt to move onto Thunderbolt 3?
Clearly Apple doesn't care, they don't even make the basic set of adapters for USB C and palm it off to other manufacturers. If I cannot even buy a legitimate adapter it doesn't really encourage confidence.
Still confidence and the Mac. Those two things don't go together anymore