Prepared by Ian Matthews July 14, 2010

 

If you are like me you probably have to go looking for the exact specifications for external connectors like USB and Firewire every few months.  For some reason, I have been unable to find a simple table that contains the core information for each product and version… so I did the research and made one:

 

 

 USB 1.1USB 2
HiSpeed USB
USB 3Firewire1
FW400 1394
Firewire2
FW800 
1394B
Firewire4
FW3200 1394D
eSATA I
eSATA
eSATAw/Pwr .
eSATAp
eSATA II
eSATA 6GB
Speed.012GB/sec.48GB/sec5GB/Sec.4GB/Sec.8GB/Sec3.2GB/Sec3GB/Sec3GB/Sec6GB/Sec
Full Duplex               

NoNoYesNoYesYesYesYesYes
Supply PowerYesYesYesPossibleYesYesNoYes?
Power Mgt               

NoNoYesNo??NoNo?
Cable Length3M5M3M
For Super Speed
4.5M4.5M
300′ if Cat5
?2M2M?
Hot Plugging               

YesYesYesYesYesYesOS & Hardwr SpecificOS & Hardware Specific?
Product Availabilitiy in 2010YesYesYesYesYes? – Apple Has Dropped supportYesYes2011
external-device-comparison.JPG

External Devices

This chart is a little smushed so if you want to see a clean version, click on this one:

Note that Apple recently dropped support for Firewire so I suspect we will be left with USB 3 and eSATA 6GB as the only common options for 2011 and 2012.


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