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Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 2:31 am
by Profezzur
I did a cursory search and didn't see any hard answers as to what is the maximum size supported micro SD card for the Pi4B as well as the fastest supported micro SD card for the Pi4B. Any one have the answers? I'd like to think that with all the other improvements there has been a juicy upgrade on those lanes as well. :mrgreen:

Thanks!

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 1:48 pm
by Jimblob64
There is no max size I know of. Literally any size you buy that's 8 GB or larger will do, though if you're wanting to format it as any kind of FAT for NOOBS, you can just grab your favorite partition editor and shrink it below 32GB so FAT32 will be an option.

For max speed, I'm not certain, but it's supposed to be about twice as fast as previous Pis. I've heard good things about SanDisk Extreme Pro cards, but Samsung EVO cards seem to do the job well enough.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 1:53 pm
by jahboater
Sandisk A1 class cards are fast and reasonably priced.

https://www.sdcard.org/developers/overv ... index.html

https://www.amazon.co.uk/SanDisk-microS ... r=8-1&th=1

Apart from NOOB's issues (don't use it), the main filesystem for Raspbian is "ext4" which can handle any sized disk.

You may download Raspbian from here, follow the instructions.

https://www.raspberrypi.org/downloads/raspbian/

I use 128GB SD cards with Raspbian.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 2:13 pm
by psteynberg
There was a Twitter post from Raspberry Pi themselves a few days ago stating that there was NO limit on size. I purchase a 128Gb Sandisk and just replicated the SD from the store using the SD copy app. Works fine and extended the size of my usable disk to the SD size.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 2:25 pm
by W. H. Heydt
The practical limit to SD card size is...what can you afford? Personally, while I do have one Pi using a 64GB card, generally if I go over 32GB, I switch to an SSD instead. While one can do a hybrid boot (/boot on an SD card, everything else on a mass storage device), in practice I am patiently awaiting the Pi4B upgrade to boot over USB to be implemented.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 2:43 pm
by andrum99
Profezzur wrote:
Wed Jul 17, 2019 2:31 am
I did a cursory search and didn't see any hard answers as to what is the maximum size supported micro SD card for the Pi4B as well as the fastest supported micro SD card for the Pi4B. Any one have the answers? I'd like to think that with all the other improvements there has been a juicy upgrade on those lanes as well. :mrgreen:

Thanks!
On all Pi's before Pi 4B the interface can do up to SDXC, which has a maximum size of 2TB. On the Pi 4 this may be different. Note that on the Pi 1, zero, 2 and 3B (but not 3B+ and 4B) there is a bug in the SoC ROM which means the maximum SD card size which the Pi can boot from is 256GB.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 4:15 pm
by Musketeer
Best you can get (highest ) for small files R/W is Samsung Pro+ or Evo+, not Evo Plus!

https://www.jeffgeerling.com/blog/2019/ ... rison-2019

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 6:57 pm
by jahboater
Musketeer wrote:
Wed Jul 17, 2019 4:15 pm
Best you can get (highest ) for small files R/W is Samsung Pro+ or Evo+, not Evo Plus!

https://www.jeffgeerling.com/blog/2019/ ... rison-2019
You should be looking at A1 class cards

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 8:12 pm
by M_P
The largest card I've used in a Pi was a 128GB Samsung EVO. I had no problems with it.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 8:28 pm
by drllama
andrum99 wrote:
Wed Jul 17, 2019 2:43 pm
Profezzur wrote:
Wed Jul 17, 2019 2:31 am
I did a cursory search and didn't see any hard answers as to what is the maximum size supported micro SD card for the Pi4B as well as the fastest supported micro SD card for the Pi4B. Any one have the answers? I'd like to think that with all the other improvements there has been a juicy upgrade on those lanes as well. :mrgreen:

Thanks!
On all Pi's before Pi 4B the interface can do up to SDXC, which has a maximum size of 2TB. On the Pi 4 this may be different. Note that on the Pi 1, zero, 2 and 3B (but not 3B+ and 4B) there is a bug in the SoC ROM which means the maximum SD card size which the Pi can boot from is 256GB.
Is that the maximum card size, or the maximum size of the boot partition on the card? If I were going to go with a card that big, I'd be partitioning it anyway...

Cheers,
Bruce.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 9:07 pm
by Profezzur
Thank you everyone for the great replies! I have a 128gb Evo in my 3 B+ and it works well, I've tried a few other 64gb and 128gb cards and they fail to boot the Pi. I can't wait to get my Pi4 when the 4gb ones ship in August.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 9:39 pm
by Imperf3kt
Profezzur wrote:
Wed Jul 17, 2019 9:07 pm
Thank you everyone for the great replies! I have a 128gb Evo in my 3 B+ and it works well, I've tried a few other 64gb and 128gb cards and they fail to boot the Pi. I can't wait to get my Pi4 when the 4gb ones ship in August.
As always, when buying large storage media, you should always perform a test to see if it is fake. Use a utility such as H2testW
There should be no reason for a Pi not to boot from one SD card and not from another.

Re: Pi 4 Max Size & Fastest Supported MSDCard?

Posted: Wed Jul 17, 2019 9:46 pm
by andrum99
drllama wrote:
Wed Jul 17, 2019 8:28 pm
andrum99 wrote:
Wed Jul 17, 2019 2:43 pm
Profezzur wrote:
Wed Jul 17, 2019 2:31 am
I did a cursory search and didn't see any hard answers as to what is the maximum size supported micro SD card for the Pi4B as well as the fastest supported micro SD card for the Pi4B. Any one have the answers? I'd like to think that with all the other improvements there has been a juicy upgrade on those lanes as well. :mrgreen:

Thanks!
On all Pi's before Pi 4B the interface can do up to SDXC, which has a maximum size of 2TB. On the Pi 4 this may be different. Note that on the Pi 1, zero, 2 and 3B (but not 3B+ and 4B) there is a bug in the SoC ROM which means the maximum SD card size which the Pi can boot from is 256GB.
Is that the maximum card size, or the maximum size of the boot partition on the card? If I were going to go with a card that big, I'd be partitioning it anyway...

Cheers,
Bruce.
I was told it is the maximum size of the card itself.