2015 MBP (Thunderbolt 2) output to Thunderbolt 3 Dock I have a 2015 MBP (Thunderbolt 2), and I want to output to a new Thunderbolt 3 docking station. The new dock is connected to 2 monitors.
Seems like what I need is a male to male Thunderbolt2 to Thunderbolt3 cable. But, from googling around, doesn't seem like such a cable exists.
I see USB C to Mini DP male to male. But that's used for new laptops (USB C) to drive older displays (Mini DP).
I also see that Apple provides a Thunderbolt 3 to 2 dongle.
https://www.apple.com/us_smb_83039/shop/product/MMEL2AM/A/thunderbolt-3-usb-c-to-thunderbolt-2-adapter
Thunderbolt 3 is male, Thunderbolt 2 is female. So I guess I could connect a Thunderbolt 2 cable from may MBP to the dongle. But even then, I'm not sure if that would work. Also, I'm not sure if it'd be driving 1 display or 2.
Can anyone help?
Thanks
Get a proper Thunderbolt 2 dock.
The problem that you’re going to have is that Thunderbolt 2 does not provide all of the bandwidth and capabilities necessary to support what’s on the Thunderbolt 3 dock.
Using a USB-C dock with older MacBook Pros
Those Thunderbolt 2 to thunderbolt 3 adapters are great for when you’re using a single use items like an Ethernet port or a Firewire adapter. Thunderbolt 3 has double the bandwidth of Thunderbolt 2 -  40Gb/s versus 20Gb/s. You simply will not be able to support everything that the newer dock supports.
What’s also important to keep in mind is that the Thunderbolt 2 uses an active cable where as Thunderbolt 3 does not. So right off the bat trying to connect this dock to your older MacBook Pro will likely not work.