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OWC Envoy Pro EX via Thunderbolt 2

chrfr

chrfr

macrumors G5
Jul 11, 2009
13,729
7,306
11201ny said:
Does anyone have experience running a OWC Envoy Pro EX on a Mac Pro 6,1? Since TB2 can theoretically transfer data at 2500 MBps, is should be able to transfer close to it's (real) speed of 730MBps Write / 1000MBps Read.

Anyone do a speed test of this configuration?
Click to expand...
The Envoy Pro EX is a USB-C device, not Thunderbolt. You can connect it to the USB 3.0 ports on the Mac Pro, but not the Thunderbolt ports.
 
mikeboss

mikeboss

macrumors 68000
Aug 13, 2009
1,546
867
switzerland
I have tried to connect the SAMSUNG X5 (and TEKQ Rapide) to a Thunderbolt 2 equipped Mac and the SSD wasn't recognized at all. I guess Apple's TB3 <-> TB2 adapter only delivers power if connected to a TB3-Mac <-> adapter <-> TB2 SSD.
 
mikeboss

mikeboss

macrumors 68000
Aug 13, 2009
1,546
867
switzerland
ha! while doing some research about TB3 <-> 10GbE adapters, I stumbled upon these remarks:

  • To use this bus-powered device on older Thunderbolt and Thunderbolt 2 computers, it has to be connected to the second Thunderbolt 3 port on another self-powered Thunderbolt 3 device. If connected directly to the Thunderbolt 3 to Thunderbolt 2 adapter, bus-power is insufficient. A possible setup might look like this: TB2 Mac with macOS 10.13.4 or above > TB3 to TB2 adapter from Apple > self-powered TB3 device with two TB3 ports > TB3 10G adapter.
 
1

11201ny

macrumors member
Original poster
Feb 28, 2014
81
10
My (simple minded) understanding is that these drives are limited by lanes, with reduces the speed to something like 700 MBps?
 
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