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SAN JOSE, Calif. - January 10, 2022 – Phison Electronics Corp. (TPEX: 8299), a global leader in NAND flash controller integrated circuits and storage solutions, today announced that its SD Express storage solution is the first product to pass the SD Association’s SD Express/UHS-II Verification Program (SVP). This verification indicates that these products meet interface standards, providing confidence to both consumers and businesses that it will operate and perform properly.

According to the SD Association, “PCIe and UHS-II are both high differential interfaces and meeting their specifications demanding requirements is extremely important to assure proper operation and interoperability.” The Association officially launched the SVP program at the end of 2021, becoming the notary unit that leads the compatibility verification between the host system and the SD memory card manufacturer to positively assist in the development of the product ecosystem. As the world's leading supplier of SD card controllers and solutions, Phison Electronics has pledged to support the SD Association's SVP program and to work with Phison's global brand customers in launching the latest SD Express storage solutions that meet the SVP verification requirements. 

As image quality of video continues to improve, user requirements for removable storage devices are increasing not only in capacity but also in transmission speeds required of the interfaces. The speed of SD cards indicated by the SD Logo are generally affirmed with the guarantee of the "minimum writing speed," largely because the general host system does not have high requirements for the read speed of removable storage devices. It only needs to roughly pre-read and confirm the correctness of the photo or video file data with more sophisticated edits or modifications moved to the PC for execution. 

However, with today’s high-speed mobile storage requirements, it is likely that system compatibility issues derived from high-speed transmission will lead to poor user experience, such as SD card speed slowing down, or card recognition failure.  Verification of Phison’s  SD Express solutions ensures that compatibility issues between system integrators and SD memory card designers are reduced, while also promoting the popularization of the latest SD card specifications. 

“Phison is a member of the SD Association's board of directors and has long assisted the SD Association in promoting the latest SD specifications and technologies worldwide,” said K.S. Pua, CEO of Phison Electronics. “The SD Association chose to launch the SVP verification program as the trend of high-speed mobile storage devices has taken off. We are pleased to have successfully attained the SVP verification within two months of our submission and becoming the first supplier to provide SD Express storage products to market with this verification.” 

SVP tests products for compliance against the SDA’s Physical Test Guideline. Products eligible for SVP include card/host/ancillary products using SD Express, with PCIe interface or SD UHS-II interface. SVP is a voluntary program available exclusively to SDA members. Additional information about SVP is available on the SD Association’s website at

About Phison

Phison Electronics Corp. (TPEX:8299) is a global leader in NAND Flash controller IC and storage solutions. We provide a variety of services from controller design, system integration, IP licensing to total turnkey solutions, covering applications across SSD (PCIe/SATA/PATA), eMMC, UFS, SD and USB interfaces, reaching out to consumer, industrial and enterprise markets. As an active member of industry associations, Phison is on the Board of Directors for SDA, ONFI, UFSA and a contributor for JEDEC, PCI-SIG, MIPI, NVMe.


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