“Camera Notes” is an account under Yitu Technology.Click the function card below to follow me, and remember to add a star!Previously, we tested and disassembled Zhi Yu’s CFexpress Type B storage card, and this time we will introduce their CATALYST series “Feng Su” (Gold) series SD cards.We received four products: a 128GB UHS-II V90 SD card, a 128GB UHS-I V30 SD card, a 256GB UHS-I V30 microSD card, and an SD/microSD card reader compatible with UHS-II and UHS-I overclocking cards. The storage cards are rated for operating temperatures from -25°C to 85°C, with a 5-year warranty.
UHS-II SDXC
With a rated read speed of 300MB/s and a write speed of 280MB/s, it meets the V90 speed class. In practical tests, it can record 4K 60p XAVC S-I video on the Sony α7IV until the card is full.
When paired with the original card reader, the measured write speed meets the standard, while the read speed is slightly higher (approximately 310MB/s). HDTUNE sustained writing of about 2GB of random data maintained a speed above 200MB/s throughout.
On the Sony α7IV, continuous shooting at 10FPS resulted in about 52 frames being captured (electronic shutter, high-speed continuous shooting+, compressed RAW). The total file size was approximately 1.87GB, with an average write speed of about 214MB/s.On the Canon EOS R7, continuous shooting at 30FPS resulted in about 45 frames being captured (electronic shutter, high-speed continuous shooting+, lossless compressed RAW). The total file size was approximately 1.43GB, with an average write speed of about 189MB/s.
In practical tests, the entire disk sustained stable read speeds without dropping.
UHS-I 128GB SDXC
With a rated read speed of 180MB/s and a write speed of 150MB/s, it meets the V30 speed class. It reaches the current top level for UHS-I overclocking cards, reducing the time to transfer to a computer and improving work efficiency.
When paired with the original card reader, the measured read speed meets the standard, while the write speed is slightly higher (approximately 162MB/s). HDTUNE sustained writing of about 2GB of random data showed no significant drop in speed throughout.
On the Sony α7IV, continuous shooting at 10FPS resulted in about 29 frames being captured (electronic shutter, high-speed continuous shooting+, compressed RAW). The total file size was approximately 1.03GB, with an average write speed of about 80MB/s.On the Canon EOS R7, continuous shooting at 30FPS resulted in about 43 frames being captured (electronic shutter, high-speed continuous shooting+, lossless compressed RAW). The total file size was approximately 1.35GB, with an average write speed of about 77.7MB/s.On the Fujifilm X-S10, continuous shooting at 8FPS resulted in about 19 frames being captured (mechanical shutter, lossless compressed RAW). The total file size was approximately 584MB, with an average write speed of about 58.6MB/s.
On the Canon EOS R7, it can record over 15 minutes of 4K 50p IPB 10bit video (340Mbps), and on the Canon EOS R3, it can record over 15 minutes of 4K 25p ALL-I 10bit video (470Mbps). In practical tests, the entire disk sustained stable read speeds without dropping.
As a UHS-I overclocking card, we also tested its compatibility with other card readers, and the new reader from Thunderbolt also achieved read and write performance exceeding standard UHS-I cards.
256GB microSDXC
With a rated read speed of 175MB/s and a write speed of 150MB/s it meets the V30 speed class. Currently, devices using microSD cards are mainly action cameras and drones, which generally do not have high bitrate writing requirements. Therefore, the focus of testing microSD cards is on read speed and reliability.
When paired with the original card reader, the measured read speed meets the standard, while the write speed is slightly higher (approximately 164MB/s). HDTUNE sustained 2000MB of random writing maintained a speed above 125MB/s throughout.
On the Sony Xperia Pro-I, using CPDT testing, the write speed was about 57MB/s, and the read speed was about 90MB/s.
On the insta360 ONE RS, recording 4K50p continued until the device overheated and shut down.
In practical tests, the entire disk sustained stable read speeds without dropping, and the card reader compatibility was also similar to the UHS-I cards mentioned above.
Card Reader
Finally, let’s talk about this card reader. It uses a USB-A port, supports UHS-II SD cards and UHS-I overclocking SD cards, and can read two cards simultaneously without significantly affecting speed. In addition to Zhi Yu’s own UHS-I SD cards, it has also been tested to achieve optimal read performance with SanDisk and Kingston overclocking UHS-I SD cards.
Conclusion
Although Zhi Yu is still a new face in the consumer storage card field, it is indeed a veteran manufacturer in the storage industry, with a rich product line and in-depth cooperation with various film and camera brands both domestically and internationally. As the saying goes, “An expert shows their skills,” these four SD card storage products have all reached the first tier in terms of performance among similar products, providing new options for enthusiasts pursuing high performance.To give a sneak peek, ET is currently testing Zhi Yu’s Nitro series CFexpress Type B card. This is the world’s first CFexpress Type B card to achieve VPG400 speed class certification, fully unleashing the potential of commercially available cameras, including the Z 9. Interested friends, please continue to follow our updates.
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