If you haven’t heard of the FIPS 140 Publication Series it is the Federal Information Processing Standard which accredits encrypted flash drives to one of four levels, with 1 being relatively secure and 4 representing encryption that is almost able to defend its self from penetration.  Adding that level of security can slow things down, which is why Legit Reviews bought a few drives off of NewEgg to test.

"On paper it looks like the IronKey solutions should be faster, but you can’t believe everything a company tells you when they are marketing a product they are trying to sell you. Since security is such a big deal to corporations these days we decided to order in these Flash drives and do some testing of our own. We’ve heard rumors and have experienced ourselves that review sites often get ‘cherry picked’ samples, so we ordered in as many drives as our $1000 self-prescribed budget would allow. You can look at our receipts from Amazon.com, TigerDirect.com and PConnection if you’d like…"

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