Category: Memory Card

FAQs

Memory Card
SD/microSD
nCARD
CompactFlash
CFast
CFexpress


Which Lexar card readers are compatible with my Lexar Professional 1066x CF memory card?

The Lexar Professional USB Dual-Slot Card Readers are compatible with the Lexar Professional 1066x CF cards. To optimize the card’s performance, pair the Lexar Professional 1066x CF card with a Lexar Professional USB 3.0 Dual-Slot Reader, which now supports UDMA 7. A firmware download is essential for 1066x CF card functionality on the older Lexar Professional USB 3.0 dual-slot card reader, and can be downloaded here.


Do Lexar CF cards support the exfat file system?

Lexar CF cards are shipped formatted with the FAT32 file system. Lexar recommends re-formatting the card in the camera before first use.


What is the benefit of using a Lexar CF 6/UDMA 7 compactflash card?

Lexar Professional memory cards accelerate the digital photography workflow. Lexar Professional CompactFlash cards deliver professional level, high-speed performance and reliability, with minimum guaranteed speeds. Capture and store high-quality images and 1080p HD video, and transfer files faster to maximize workflow. Lexar Professional CompactFlash cards include Image Rescue® 4 software and come with a limited lifetime warranty. With Lexar Professional CF cards, you can count on high-speed performance to save time, beat your deadline, and gain competitive advantage.


What is the CFast™ format?

CFast is the latest evolution of card format from the CompactFlash Association and provides a higher maximum transfer rate than CompactFlash® cards. CFast cards are similar in size to CompactFlash cards, but do not have any pins which can bend in the connector. The format was primarily designed to support the capabilities of next-generation of camcorders and DSLR cameras.


Are CFast cards compatible with compactflash cameras?

No. Despite physical similarities, CFast cards are not compatible with CompactFlash devices.


How fast is the Lexar Professional 3500x CFast 2.0 card?

The Lexar Professional 3500x CFast 2.0 card delivers a read transfer speed up to 3500x (525MB/s), which is three times faster than today’s fastest CompactFlash cards.* The card leverages these new speed thresholds to allow you to capture, store, and transfer high-quality photos and 1080p full-HD, 3D, and 4K video. *Up to 525MB/s read transfer, write speeds lower. Speeds based on internal testing. Actual performance may vary. x=150KB/s. 3x faster claim based on reported CompactFlash speed specification.


Why are cards going to faster standards?

The development of technologies like XQD™ and CFast™ address the increasing capabilities of today’s cameras, as well as the ever-growing demands placed on professional photographers and videographers.


Is there a Lexar card reader that works with this card?

Yes. The card is designed to leverage next-generation Thunderbolt 2 speeds when used with the Professional Workflow CR2 reader (as well as the Professional Workflow HR2 hub). The card also works with the Professional Workflow CR1 reader and Professional Workflow HR1 hub (both at USB 3.0 speeds).


What devices work with this card?

Canon and Phase One have announced support for the CFast card format, so you can expect to see cameras from them in the future.


What is the best way to optimize my CFast card?

From time to time, it’s recommended to refresh your CFast card for maximum performance. Please go to https://www.lexar.com/support/downloads/ to download our CFast Refresh Tool.


Lexar CFast card compatibility

 width=


What is CFexpress?

CFexpress is the latest standard for removable media cards proposed by the CompactFlash Association. The standard uses PCIe 3.0 interface with 1 to 4 lanes where 1 GB/s data can be provided per lane. NVM Express is also supported to provide low overhead and latency. For more information, click here https://www.compactflash.org/cfexpress


What is the difference between CFexpress Type a, Type b, Type c cards?

The difference between the three cards are the form factor, number of lanes and maximum performance. Currently the most used card is the Type B due to its similarities in size with XQD cards.  width=


Are CFexpress type b cards the same as XQD cards?

While CFexpress Type B cards and XQD cards can fit in the same slot, compatibility depends on the host devices. Please check compatibility of your host device with your manufacture.


Is my device compatible with CFexpress Type B cards?

Please check here for compatibility. https://www.lexar.com/support/compatibility/


Does my camera already support the Lexar CFexpress card?

Please refer to the chart below and check with your device manufacture’s website to download compatible firmware.

Camera Brand Model Lexar CFe Compatibility
Canon EOS R5 Yes
EOS-1D X Mark III Yes
EOS C500 Mark III Yes
EOS C300 Mark II Yes
Panasonic S1 Update FW 1.5 or higher
S1R Update FW 1.5 or higher
Nikon Z7 Update FW 3.0 or higher
Z6 Update FW 3.0 or higher
D6 Yes
D5 / D850 / D500 Camera FW not released


XQD -discontinued

 width=


What is CF 6?

CF 6 is a CompactFlash® memory card specification. This new CF memory card specification allows capacities up to 144PB and measurable speeds up to 167MB/sec. This can be compared to the previous CF 4.1 specification, which only allowed capacities up to 137GB and measurable speeds up to 133MB/sec.


What is UDMA 7?

UDMA 7, which stands for Ultra Direct Mode Access 7, is the latest transfer mode under the UDMA interface. UDMA 7 allows a maximum transfer rate of up to 167MB/sec. This can be compared to the previous UDMA mode, UDMA 6, which allowed transfer rates of up to 133MB/sec.  width=


What is VPG-20/ VPG -65?

 width= The VPG-20 logo represent adherence to the Video Performance Guarantee-20 specification for professional-quality video. When used with a compatible camera, the VPG-20 logo on a card means that the system has been tested and guaranteed for professional video capture streams at up to 20MB/sec. This enables professional-quality video capture at high frame rates with no dropped frames.  width= The VPG-65 logo represent adherence to the Video Performance Guarantee-65 specification for professional-quality video. When used with a compatible camera, the VPG-65 logo on a card means that the system has been tested and guaranteed for professional video capture streams at up to 65MB/sec. This enables professional-quality video capture at high frame rates with no dropped frames.


Can I use a CF 6/UDMA 7 compactflash memory card with older host devices?

Yes! All Lexar CF memory cards built with CF 6/UDMA 7 technology can be used with existing CF and CF UDMA devices (backwards compatible). Pairing your CF 6/UDMA 7 enabled CF memory card with a CF 6/UDMA 7 enabled host device is recommended to fully take advantage of the performance benefits from your CF 6/UDMA 7 enabled memory card.


Which host devices in the market today are UDMA 7 compatible?

The Canon EOS 1D-X is UDMA 7 enabled. The Canon EOS 7D, EOS 50D, EOS 1D Mark IV and the EOS 5D Mark II can be UDMA 7 enabled though a firmware upgrade. Canon EOS 7D firmware upgrade » https://www.usa.canon.com/internet/portal/us/home/support/details/cameras/eos-dslr-and-mirrorless-cameras/dslr/eos-7d/eos-7d?subtab=downloads-firmware Canon EOS 7D, EOS 50D, EOS 1D Mark IV and the EOS 5D Mark II firmware upgrade » https://www.the-digital-picture.com/News/Default.aspx?Cat=Canon-Firmware-Updates


Will SDXC cards work on SDHC host devices?

Yes, SDXC cards work on SDHC host devices. The image below shows the host device and the memory cards supported in detail.  width= Cards and host devices -SDUC memory cards must only be used with SDUC host devices. -SDXC memory cards can be used with SDXC and SDUC host devices. -SDHC memory cards can be used with SDHC, SDXC and SDUC host devices. -SD memory cards can be used with SD, SDHC, SDXC and SDUC host devices. Additional info on cards and host devices -SDUC Host Devices can use SD, SDHC, SDXC and SDUC memory cards. -SDXC Host Devices can use SD, SDHC and SDXC memory cards. -SDHC Host Devices can use both SD and SDHC memory cards. -SD Host Devices can only use SD memory cards. *Source: SD Association


What operating systems support SDXC/ mircoSDXC/ exfat file system?

SDXC/microSDXC cards and 256GB CompactFlash cards are formatted natively in the exFAT file system. Flash Drives may also be formatted in exFAT. The operating system must support the exFAT file system in order for these devices to function properly. You may need to update the operating system on your devices to recognize the SDXC/microSDXC cards. Operating Systems that Support the exFAT File System  width= NOTE: Some Host devices may NOT support SDXC cards. SDXC/microSD cards CANNOT be used with Windows 98, Me, 2000.


How do I recover missing or deleted files on my memory card?

Lexar recommend using the Lexar Recovery Tool. You can download the Tool at https://www.lexar.com/support/downloads/. Please refer to the Lexar Recovery Tool section under FAQ page for detail. Disclaimer: Lexar does not guarantee to recover any your missing or deleted files. Lexar assumes no liability for damage to the customer’s equipment or data caused by the use or misuse of the format functions.


How do I update my SONY camera firmware to be compatible with Lexar Professional SD cards:

The SONY camera models below may have compatibility issues if the latest firmware has not been updated to the versions in Step 2. Camera models: Sony Alpha 9 (SONY ILCE-9) Sony Alpha 7R III (SONY ILCE-7RM3) Sony Alpha 7 III (ILCE-7M3) If you’ve encountered this error message,  width= please follow the steps below to update your SONY camera firmware. Step 1. Check the firmware version on your camera: Select Menu > Setup subpage [7] > Version on the camera. The system software (firmware) version will be displayed as shown below.  width= Step 2. Please use the links below to download the latest firmware and follow the installation instructions from the SONY website.

Camera model Firmware versions Links for download and detailed installation instructions
Sony Alpha 9 (SONY ILCE-9) Ver6.0 Windows: Click here Mac: Click here
Sony Alpha 7R III (SONY ILCE-7RM3) Ver3.01 Windows: Click here Mac: Click here
Sony Alpha 7 III (ILCE-7M3) Ver3.01 Windows: Click here Mac: Click here


What is SD UHS?

UHS stands for “Ultra High Speed” and refers to the new technology that enables higher bus interface speeds on Secure Digital High Capacity (SDHC) and Secure Digital Extended Capacity (SDXC) cards. UHS-I defines interface speeds up to 104MB/sec. A SDHC or SDXC card that supports “UHS” could have performance up to 104MB/sec. UHS-II is the next generation of UHS. UHS-II improves the interface speed up to 312MB/s. That is 3 times faster than UHS-I.  width= *Source: SD Association


What is the U1/U3 speed class?

Some of the new UHS memory cards may have a U1 marking, which refers to the U1 Speed Class designed for UHS-I card. The U1 Speed Class designates a minimum capture (write) performance of 10Mbytes per second for recording streaming video content. Note that although U1 is the same speed as Speed Class 10, they are tested differently, and meeting one does not imply that the other is met by the card. U3 Speed Class means that the memory card performance needs to reach 30MB/s to meet 4K resolution recording and play.


What is the V30/V60/V90 video speed class?

A constant writing speed class for video recording. There are three kinds of Speed Classes, "Speed Class", "UHS Speed Class" and "Video Speed Class." This Speed Class provide the constant speed necessary for video recording by designating a minimum writing performance, this include V6、V10、V30、V60 and V90. V6 Speed Class means that the minimum write speed of the memory card needs to reach 6MB/s, V10 is 10MB/s, 30 is 30MB/s, and so on. V60 and V90 can be applied to high resolution and high quality 8K video recording, and V30 can be applied to 4K resolution. SD makers will print these speed class symbols on memory card (V60, V90…etc.). These speed class symbols will be applied to SDHC, SDXC, UHS-I, UHS-II and SD memory card help users decide the best combination for reliable recording.  width=  width= *Source: SD Association


What is A1/A2 application performance class?

It is used for smartphone application performance classification. Application Performance Class 1 (A1) and Class 2 (A2) defines the minimum average of random read/write IOPS. IOPS specification of A1 is read 1500IOPS /write 500IOPS, and the minimum sustained sequential performance is 10MB/s. IOPS specification of A2 is several times faster than A1. The random read is 4000IOPS, and the random write is 4000IOPS. That means the write performance of A2 is faster than A1 read performance, and the minimum sustained sequential performance is also 10MB/s.  width= *Source: SD Association


What host devices in the market compatible with Lexar SD/microSD?

Please refer to Lexar compatibility list..


What is SD/SDHC/SDXC/SDUC?

 width= width= *Source: SD Association

Compare