TEMPS, SUSTAINED WRITES AND TRUE DATA TESTING
Two characteristics that became very important with the introduction of CFexpress as a mainstream storage medium were temperature and sustained write speeds. We measure temperature by monitoring and updating a Crystal DiskInfo Benchmark while a large 85GB 8K file transfer is being performed. This is the extreme of what one might see in this environment.
Temperature was decent for all capacities of the Sabrent Rocket CFX Pro, remaining at the mid-range of all tested to date.
SUSTAINED WRITE PERFORMANCE
We determine sustained write performance by transferring a 85GB 8K media folder from the PC to the CFexpress Type B card. This test is vital to those looking at digital storage for high end 4K and 8K video recording.
1/2 TB CAPACITY
Sustained write performance of 1.5GB/s for the 1/2TB version of the Sabrent Rocket CFX Pro CFExpress Type B memory card is excellent, although we see this drop to 825MB/s for the 512GB version. There is absolutely nothing wrong with this as it easily doubles that of the VPG400 standard which is the industry standard as a minimum for professional video capture, as well as that required to utilize all features within specific digital equipment as the Canon EOS R5 camera.
REAL WORLD FILE TRANSFER COMPARISON
For our Real World File Transfer Comparison of the world’s top CFexpress Type B cards, we have included all cards that we have received to date. This test is conducted through the transfer of data from one spot on the test drive to another to give us the truest of transfer speed results for that device.
REPORT ANALYSIS AND FINAL THOUGHTS
There are plenty of CFExpress Type B cards available on the market right now and that’s a good thing as they add significantly to what we can do with the right equipment. As much as a photographer, or videographer, needs a good eye and sense of composition for that fact, the right equipment can add significantly to their ability to nail just the right shot.
Where Sabrent is a step ahead is the fact that they always seem tp go that extra step. Most manufacturers would have put out a single capacity point where Sabrent made their Pro version available in 512GB, 1 and 2TB. Sabrent has also identified the need to have a cooler CFExpress type B card running at top sustained write speeds, for higher capacity cards. This is key for videographers and those working in 4/8k recording.
A 2TB card capable of 1.5GB/s that can maintain decent temperatures is a dream. Now add to that decent pricing and a 3-year warranty with registration. Warranty is key and the Sabrent Rocket CFX Pro comes with a 1-year basic warranty which is bumped to 3-years with registration. The Sabrent Rocket CFX Pro has become our go-to for our digital needs and that pretty much says it all.