Jetson TX2 SD Card Boot - SD Card Type (SDHC/SDXC UHS-II)

[astronomy_curmudgeonish]

Dear Community,

I am researching the possibility of using a SD Card for booting.

A post on this forum mentions the maximum size of a SD card to be 2 TB

Maximum Size and type of SD card_Jetson TX2

What is the maximum size of the SD card that can be used in NVDIA Jetson TX2. And is there any particular specification need to be considered while buying the SD Card.

I am interested in knowing whether the TX2 supports SDXC UHS-II cards.
This post: https://www.jetsonhacks.com/2017/01/26/run-jetson-tx1-sd-card/ indicates a UHS-I type SD card. The tutorial is considered by this community deprecated, as it was written in 2017 and is for the TX1.

The reason we want to boot from UHS-II cards is the increased RW speed when compared to UHS-I.
It is indicated here that eMMC is significantly faster than UHS-I cards: Flash TX2 with SD card - #6 by AutoCar

I am looking forward to your reply!
Kind regards

[linuxdev]

I could be wrong, but my understanding is that UHS-II works, but falls back to UHS-I mode. I’d also be interested in knowing if I am wrong about that.