Pretty cool idea. I don't want it, but I can think of people who would take advantage of this. Seems a little bulky, though. Are there other flash drives like this, that use Micro USB or USB-C?

Well....this is faster and probably cheaper solution edit: you can get m.2/sata ssd to solution pretty much. About 10$ for a "rack" and you are done. https://sgcdn.startech.com/005329/media/products/gallery_large/SM2NGFFMBU33.E.jpg

Yeah, It is just missing the iOS integration using the Lightning connector. But there are options with card readers. Like the iKlips miReader4k. Almost same options as OP but using external Micro SD cards. https://cdnp3.stackassets.com/cf1abed36080307d2f158dd4f2f0ebbe3a20b98f/store/opt/596/447/9d2556bb0c16212fe5a6173f54b581a0be42f2c9f44444ef8aa2d86965b6/product_14536_product_shots1_image.jpg

I picked that image at random. There are SSD/m.2/msata to whatever you want, including thunderbolt. Just google it. Thou, they are more expensive because apple.... PS. Main point that I was trying to make is you can get 500MB/s, why settle for 20/60MB/s? Yea, that's USB 3/3.1 nand flash territory. Then again, if that adata "flash" is going to be at least 20% cheaper than equivalent, in size, ssd + converter, sure, it's better. it's a bit smaller. If anyone cares for the size that much, considering that people carry note phones in their pockets these days... 🙂