Can't find any info on these, here, but their 'supersport' line is listed as follows:
PixelFlash SuperSport CF 1066x 165MB/s Compact Flash Memory Card Magic Lantern UDMA 7 1000x
http://www.amazon.com/PixelFlash-SuperSport-Compact-Memory-Lantern/dp/B0070JNULA/ref=cm_cr_pr_product_top?ie=UTF8
FYI to anybody interested: I just purchased a 32gig '1000x' (1066x???) off of eBay for 49$$. I sent an offer and it was automatically accepted.
Amazon reviews paint it as being mostly reliable, and the one benchmark posted put max speed at 124MB/sec write, ~154MB/sec read..
I Guess I'll find out soon enough
For anybody interested, on my 50D I get around 70~71 MB/sec average with all the optimal settings applied , and it rarely ever dips into anything lower 69MB..
perhaps it doesn't jive well with the 50D's controller.
Seems to be a durable card though - I'm running it on a USB 3 reader via a USB 2.0 port, and it hasn't had any problems