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.
An important aspect to remember is that the temperature results we obtain are the extreme. They are the hottest the card got during any period of our testing which was constantly monitored. It does not speak to the median or typical temperatures one might expect which would be around the low 30°C mark. Having said that, the results we obtained from the Manfrotto Professional 128GB CFExpress B card were 57°C which is a decent result.
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.
At a sustained write speed of 1.44GB/s, the Manfrotto Professional placed second only to the Lexar Professional Diamond which is very impressive.
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.
Once again the Manfrotto Professional pulled through with some great data transfer speeds, second only to the Lexar pro Diamond.
REPORT ANALYSIS AND FINAL THOUGHTS
Our testing of the Manfrotto Professional 128GB CFExpress Card was a complete surprise to say the least. When speaking of CFExpress Cards, we envision a triangle comprised of sustained write performance, low temperatures and data transfer speeds. The Manfrotto Professional literally blew all but the Lexar Diamond away with sustained write performance at 1.44GB/s while maintaining a low temperature of 57°C.
This is a great entry into the digital media flash space by Manfrotto and we have no problem whatsoever recommending this card for any camera. The only points of concern we might have are pricing, where we found that of both the 128GB and 256GB capacities to be well above all other cards we could find, and the card reader maximum speed of 1GB/s. That in itself is not such a negative though as the card reader performance resulted in one of the best prices we have seen in a CFExpress card reader to date.
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