I can confirm the 128GB Lexar High-Performance microSDXC 633x 128GB UHS-I/U3 card works fine. It's actually identical to the card that came in my Inspire, only, well...with but with EIGHT TIMES the storage capacity.
I'm guessing DJI didn't list 128GB as they are fairly new is all.
Amazon purchase link is here for those interested: http://amzn.com/B00O1M21H8
Also of interest is a note by a reviewer who compared the performance of this card with the SanDisk, and this Lexar is almost 2X as fast as the SanDisk Ultra:
When writing 4K video you probably can't have a fast enough storage medium and the performance of the Lexar is probably why DJI chose Lexar over SanDisk as the card to ship in the Inspire.
I'm guessing DJI didn't list 128GB as they are fairly new is all.
Amazon purchase link is here for those interested: http://amzn.com/B00O1M21H8
Also of interest is a note by a reviewer who compared the performance of this card with the SanDisk, and this Lexar is almost 2X as fast as the SanDisk Ultra:
"PERFORMANCE: This 633X card is rated at 95MB/sec read speed, class 10. And it pretty much delivers on that promise, Using CrystalDiskMark 3 and the supplied USB3 adapter I measured 85 MB/sec. Lexar does admit that "write speeds will be lower", and indeed they were at 41 MB/sec.
For comparison a Sandisk Ultra class 10 card I have SanDisk Ultra 16 GB MicroSDHC Class 10 UHS-1 card tested 44MB read and 11MB write in that same USB3 adapter. The Lexar was about twice as fast as Sandisk Ultra.
When writing 4K video you probably can't have a fast enough storage medium and the performance of the Lexar is probably why DJI chose Lexar over SanDisk as the card to ship in the Inspire.
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