A couple of years ago, a 128 or even a 256GB SD card would give me the fear. Now I’m looking at a card with 1TB of storage, can a card of this size be safe to use, what if it goes wrong?
Having now settled into life with these larger capacity cards I can say I’m far more comfortable, and with the advent of CFExpress the additional robust build quality helps to reassure me further. But, now I have an SD card with 1TB of storage in a format that I have never felt is that robust having gone through many in the decade or so that the format has been widely used.
Because of the doubts I still have about SD durability, I decided that this card was going to be put through a more extreme form of testing. It may have quite a large monetary value but if you’re going to pay in excess of £200/$200 for an SD card lets check that it’s going to last the distance.

For that matter £200 isn’t actually a great deal of money considering the capacity, the Sandisk 64GB UHS-II can set you back nearly £100 so in balance the Sabrent Rocket V60 is a snip.
Back to the test and mainly because it’s cold outside I can subject the card to a little more exposure than normal. Alongside the transfer rates, drop, and left in a bag test I’ll also leave it outside in the freezing cold and use it extensively over a month as the primary storage media for the Sony A7 III.
As it happened, it’s been a busy month, with several shoots, both video and stills. Throughout the main bulk of the test, the card has remained in the camera; with that huge 1TB of storage, there has been little or no need to remove it aside from downloading the image or video files.
In use, the V60 speed ensured fast transfer speeds that exceeded what the Sony A7 III needed, so on that front, all good. Once the standard test was complete, the card was used in the Canon EOS R5 C, and after a quick swap of the card functions, SD was selected as the primary storage destination. Again the card kept up with the shooting needs of the Canon R5 C as an internal storage solution.
After the main test I then started to be a little less careful with the card, keeping it in my pocket and throwing it into a side pocket of my backpack when not in use, just making sure it was clean and dust free before popping it back in a camera. The card thankfully stood up to general wear and tear, with no issues on performance and use. Likewise, leaving it outside for six hours in temperatures below 0 also proved to have little effect on the card’s performance, although it was warmed back to room temperature before using.
Checking the performance in Blackmagic Disk Speed Test revealed the following impressive results:
Write: 82.2MB/s
Read: 190.2MB/s