does the speed go down?
I got a harddisk with firewire 800 out and my mbp retina doesn't have a firewire 800 fit.
I saw the adapter from firewire 800 to thunderbolt. but do you still keep the speed that firewire 800 has?
MacBook Pro with Retina display, OS X Mountain Lion (10.8.5)
You should. The Thunderbolt port is much faster than FireWire, so you do not lose speed by using the adapter
If your disk and Mac both have USB 3.0, the disk will run faster on USB than on Thunderbolt to FireWire.
R/W disk speeds:
USB 3.0 and Thunderbolt about equal at ~110 MB/s
Firewire about half at ~60 to ~70 MB/s
USB 2.0 about a third at ~35 to ~40 MB/s
http://www.macworld.com/article/2039427/how-fast-is-usb-3-0-really-.html
Firewire 800 to thunderbolt Adapter
