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What Lloyd uses in the field for a carry-around backup.
Fits just about anywhere, tough aluminum case.
2012 MBP Retina — USB3 Performance
Related: Macs, Laptop, USB, MacBook Pro, USB3, MacBook Pro and MacBook, Mac
I tested USB3 using the 480GB OWC Mercury Elite Pro Mini.
The MacBook Pro 15" and MacBook Pro 15" with Retina Display perform the same with USB3.
The results show that the USB3 ports offer about 8-12X the performance of the USB2 ports found on older MacBook Pros — a compelling difference. The speed blows-away the sluggish Firewire 800 port on the older MacBook Pros by a real-world factor of 3-7X. That’s a huge gain rarely seen with any upgrade.
While these read/write speeds on USB3 are not as fast as with an internal SATA 6G SSD, they easily exceed the performance requirements of all but a few extremely demanding programs.
$1349 SAVE $150 = 10.0% Apple 21.5" iMac with Retina 4K Display (Late 2015) in Computers: Apple Macs