I need specifications

Welcome to the Dell Community  @Mvduvfu 

@JOcean I also found that post but noticed it is for the 9530.

It has the 3 in 1 slot and the 9550 is a 6 in one slot.

Type One 6-in-1 slot

Cards supported

• SD card
• SD High-Capacity (SDHC) card
• SD Input Output (SDIO) card
• SD Extended Capacity (SDXC)
• SD Extended Capacity (SDXC) card with Ultra High Speed (UHS)
• Multimedia card (MMC) with Ultra High Speed (UHS)

XPS 15 9550 Specifications:

I just cant find what the max R/W speed is???

Best regards,

U2

This forum post reply from Farooq A should answer your question.

I agree but notice that the 3 in 1 supports Ultra High Speed as does the 6 in 1. Therefor the read speeds should be the same for the highest speed cards, or so it would appear. But possibly a moderator has the exact specs.

I just can't find if it's UHS-I or UHS-II.

I know it should not be UHS-III or SD Express as they where released 2017 and 2018

Oh well I give up.

Hopefully a Moderator can help.

Regards,

U2