HP envy Multi card reader specifications

[Awk1]

What are the specifications of the built in multicard reader, I am not finding any real specifications on the card. I am Interested in which card standards  it supports, maximum sizes supported and it’s maximum transfer rates for the different card types. My system is ordered and I am looking to buy some SD possibly SDHC or SDXC cards to use with it and would like to avoid wasting money on a card that will not work , or is rated for speeds way above what the card readers transfer speed rating.

[banhien]

@Awk1 

It supports SD, SDHC and SDXC cards (including micro cards on adapters) up to 2TB. But I only tested it with 512GB. I don't have higher capacity card because I would NEVER store many things to an easy to get lost card.

Regards.

[Awk1]

That covers size, and is actually way more than I currently need. Anybody know about transfer speed ratings of the device itself?

[banhien]

@Awk1 

No, you won't get steady transfer speed. By the way, each card has its transfer speed printed on itself:  U1, U3, class 10 ... for example 170 MB/s as shown:

          

Hope this makes sense

Regards.

[Awk1]

I get that different cards have different speed ratings, my question isn’t what is the speed rating of the particular card, I am buying. My question is what is the speed rating of the built in reader, as there is no use spending extra on a 170MB/s if the fasted device I have reading/writing to the card is only rated for 110MB/s, as the 170MB/s card will only operate at 110MB/s in that device.

My goal here is to get a card with performance that is on par with the speed of the fastest device I am going to use it with, and not waste money for performance I can’t use on any of the devices I plan to use the card with.