External SSD: Integral 512 GB vs LaCie Rugged 256 GB??

[zRedbullz]

I'm looking to buy an external SSD to carry a bootable OS X and creative applications for professional use on different computers.

However I've come across to 2 portable external SSD options:

INTEGRAL USB 3.0 PORTABLE SSD EXTERNAL - http://www.integralmemory.com/product/usb-30-portable-ssd-external

OR

LACIE RUGGED USB 3.0 & TB - http://www.lacie.com/uk/products/product.htm?id=10599

LaCie has Thunderbolt & USB3

Integral has USB3 only but almost twice the storage and considerably smaller.

Can anyone advise which of the two might be better in terms of what I intend to use it for?

Thanks

 

[Giuly]

Pegasus J2 - is pretty small (uses two mSATA SSDs), four times as fast as the Integral and connects via Thunderbolt. You could expand it up to 1920GB using Crucial M500 mSATA SSDs.

 

[zRedbullz]

Sounds great but no good - it has thunderbolt only connectivity. If I wanted to work on the current Mac Pros I'm stumped.