my guess is still a micro ssd. most ones today are sata3 with 6Gbps which is way more than needed for the system and you can get them off the shelf. propriatery would just be another thing to be special. micro sd cards weren't reinvented... everybody cooks with water and so is DJI. some things need to go through the - make or buy thinking- and micro ssd would dumb to reinvent. embossing the logo on them is like making a keychain for your company workers so the buy a s**t load and let them put the logo / rebrand them on. like with the lenses for the x5 series. rebranded olympus or panasonic lens...Oh the images it seems pretty obviously narrower than standard microSATA, so it strongly suggests a proprietary form factor.
Because the Phantoms don't need to pump up to 2.4Gbps of data into it. This exceeds the capabilities of a standard microSATA drive, and off the shelf alternatives that are capable of it are either significantly larger or not designed for frequent insertion/removal - hence the need to make their own to ensure reliability both mechanically and in terms of transfer speeds.
They did, but it's on the other side and thus (probably intentionally) hidden on that particular one.
That's likely nothing more than an invalid autogenerated suggestion because there's SSD in the description. Especially given it's actually 2.5" and definitely won't fit in there.
cheers
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