Tag Archives: sustained write

To say that CFExpress Type B cards haven’t redefined digital media in the past two years would be an understatement.  Many enjoy their advantages in moving large photo and video files from the card to PC for work in a fraction of the time that it used to take, but more importantly, its what CFExpress B cards do inside the …

Without a doubt, the toughest lesson learned on release of the Canon EOS R5 Mirrorless camera was that of storage and this relatively new thing called sustained write performance.  Countless people purchased these cameras, along with first generation CFExpress Type B cards that had not been approved by Canon.  They quickly learned that features that should be available within their …

The popularity of CFExpress Type B cards has been overwhelming over the past year and we are certain that it will continue to grow as newer digital equipment is released with this type of storage in mind.  It moves us from under 100MB/s data transfer speed for most up to over 5x that with CFExpress highs of 1700MB/s.  Don’t get …

Type B CFExpress cards have gained massive popularity as of late  but what about CFExpress Type A.  Has it been forgotten?  The unfortunate reality of CFExpress Type A cards is that they are a very niche product limited to very few Sony cameras; the Sony a7S III, FX3 and Fx6 specifically. If it’s a professional DSLR that has CFExpress storage, …

Less than two weeks ago, we posted a report on the ProGrade Digital 1TB 1700 Gold and 325GB 1700 Cobalt CFexpress B Cards, along with their Thunderbolt 3 CFexpress Card Reader. We were so impressed we just had to do it again.  Admittedly, we were floored by the Cobalt 1700 speeds while maintaining anything but what could be considered the …

Some time ago, we posted our review on the newest storage media to hit the consumer as of late, the Lexar Professional 256GB CFexpress Type B Card.  At 1750MB/s read and 1000MB/s write, this storage media is pretty much the fastest there is for its size. It comes with a limited lifetime warranty, and at the time of our review, …

If there is anything we have discovered with the release of the Canon EOS R5 camera in the past two months, its the need for fast CFexpress Type B cards at a low temperature.  Our first two reviews of CFexpress Type B looked at the Lexar Professional and SanDisk Extreme Pro CFexpressB cards, both of which are “Canon R5 approved”. …