Blackmagicdesign Blackmagic Video assist, Installation And Operation Manual, Page: 29 / 478

About SD Cards
About SD Cards
Choosing a Fast SD Card
It’s important to use high speed UHS-II SD cards for Ultra HD and HD recording, or UHS-1 cards
for HD recording. These cards are rated for fast data speeds and support larger storage sizes.
For Ultra HD recording on Blackmagic Video Assist 4K, you will need to use the fastest UHS-II
cards available. We have included a table below that shows the latest compatible SD cards for
recording Ultra HD, HD and SD video. It’s worth regularly checking the latest version of this
manual for more up to date information and can always be downloaded from the Blackmagic
Design website at www.blackmagicdesign.com/support
The following table contains SD cards we have tested and are able to record video up to a
given maximum format on Blackmagic Video Assist 4K.
Compatible SD Cards
Maximum Supported Format Manufacturer / Model Size
Ultra HD 2160p30 inc MXF Transcend SDXC UHS II 180MB/s 64GB
Ultra HD 2160p30 inc MXF Lexar SDXC UHSII 2000x 300MB/s 64GB
Ultra HD 2160p30 inc MXF Lexar SDHC UHSII 2000x 300MB/s 32GB
Ultra HD 2160p30 inc MXF Toshiba Exceria Pro SDXC UHSII 64GB
Ultra HD 2160p30 Delkin Devices SD SDHC UHSII 250MB/s 32GB
Ultra HD 2160p30 SanDisk Extreme Pro SDXC UHSII 280MB/s 64GB
HD 1080p60 inc MXF SanDisk Extreme Pro UHS I 95MB/s 64GB
HD 1080p60 Lexar SDHC UHS II 1000x 150MB/s 32GB
HD 1080p60 Lexar SDXC UHS II 1000x 150MB/s 64GB
HD 1080p60 Lexar SDXC UHS II 1000x 150MB/s 128GB
HD 1080p60 Lexar SDXC UHS II 1000x 150MB/s 256GB
HD 1080p30 inc MXF Lexar SDHC UHS I 633x 95MB/s 32GB
HD 1080p30 inc MXF Lexar SDXC UHS I 633x 95MB/s 64GB
Most UHS-I and UHS-II SD cards should be fast enough to record compressed HD video up to
60 frames per second, however it’s worth testing your card’s record speed to be sure. You can
do this using Blackmagic Disk Speed Test software which can be downloaded from the
Blackmagic Design support center. For information on using Disk Speed Test, refer to ‘checking
disk speed’ in this section of the manual.
Formatting SD Cards using your Video Assist
It’s very easy to format your SD card using the storage settings. You can format your card using
HFS+ or exFAT formats.
HFS+ is also known as Mac OS Extended. It is the recommended format as it supports
“journaling”. Data on journaled media is more recoverable and less likely to be corrupted.
HFS+ is natively supported by Mac OS.
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