The Canon EOS R50 uses a single SD card slot that supports UHS-I. You do not need a UHS-II card to meet the camera’s interface specification.
What card speed does standard 4K need?
For 4K UHD at 29.97, 25, or 23.98 fps using IPB Standard in normal 8-bit recording, Canon specifies UHS Speed Class 3 or higher. A card marked U3 is therefore the relevant minimum rating for the standard 120 Mbps 4K mode.
Is V30 a sensible target?
V30 means the card is rated for at least 30 MB/s sustained video writing. Many current SD cards carry both U3 and V30 markings, making V30 a straightforward shopping target for the R50’s demanding normal modes.
Do you need V60 or V90?
Not for the R50 recording modes listed in Canon’s manual. The camera itself uses a UHS-I slot, and Canon’s highest listed card requirements are UHS Speed Class 3 or specific read-speed requirements. Buying V60 or V90 media does not turn the R50’s slot into UHS-II.
What about 4K IPB Light?
Canon lists SD Speed Class 10 or higher for 8-bit 4K IPB Light. When HDR PQ 10-bit recording is enabled, Canon raises the requirement to UHS Speed Class 3 or higher.
What about Full HD 120 fps?
For Full HD high frame rate recording at about 120 fps using IPB Standard, Canon specifies UHS Speed Class 3 or higher. IPB Light requires SD Speed Class 10 or higher in normal 8-bit recording.
Capacity is separate from speed
A 256GB card does not automatically write faster than a 128GB card. Capacity tells you how much data fits. U3, V30, and other speed markings tell you about minimum write performance.
See how much Canon R50 4K footage fits on common card sizes.
Shopping links
Browse 128GB UHS-I V30 SD cards on Amazon.
Browse 256GB UHS-I V30 SD cards on Amazon.
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Read the general memory-card speed guide.
Related Canon R50 guides
- Canon EOS R50 practical reference
- How much R50 4K video fits on common card sizes?
- V30, V60, V90, UHS-I, and UHS-II explained
- Why bitrate changes storage needs