Sony EX SxS 32GB Storage Card
SXS Cards are great combination of speed and reliability which is why EX-1, EX-3, F3 and ARRI ALEXA all use the format.
The Sony SXS Cards have become the standard for their high transfer speeds and reliability. So much so that ARRI chose them to be the format for their flagship ARRI ALEXA camera system. A 32GB card will give you about 100 minutes of record time with XDCAM EX camcorder and about 20 minutes when recording ProRes on the ALEXA