Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Question about external SSD speed on iMac Pro

F

FredT2

macrumors 6502a
Original poster
Mar 18, 2009
572
104
I have attached a Glyph 4TB Atom Raid SSD to my iMac Pro. It tests out at around 850 MB/s with Blackmagic Speed Test. I also have a 4TB hard drive in an external Thunderbolt 2 enclosure. I connect it with a TB2 to TB3 adapter. The strange thing is that with both the SSD and hard drive connected, the SSD speed drops to around 425 MB/s. It doesn't matter what combination of ports I use. A USB 3 drive connected to one of the TB3 ports has no effect on the SSD speed. Can anyone explain what is happening here?
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back