The SDSDUNR-064G-GN3IN is listed as a SanDisk Ultra 64GB SDXC memory card for digital cameras and other devices with a full-size SD card slot.
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Product specifications
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Model: SDSDUNR-064G-GN3IN
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Brand: SanDisk
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Series: Ultra
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Capacity: 64GB
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Format: SDXC (full-size SD card)
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Speed class: Class 10 (C10)
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Interface: UHS-I
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Maximum read speed: 100 MB/s
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Write speed: Not specified in the supplied description
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Warranty: 7 years, as stated in your description; regional terms may vary.
SanDisk Ultra SD card comparison
| Specification | 32GB model | 64GB model |
|---|---|---|
| Model | SDSDUNR-032G-GN3IN | SDSDUNR-064G-GN3IN |
| Capacity | 32GB | 64GB |
| Card format | SDHC | SDXC |
| Interface | UHS-I | UHS-I |
| Maximum read speed | 100 MB/s | 100 MB/s |
| Warranty stated | 7 years | 7 years |
Key takeaway: The 64GB model doubles the storage capacity while retaining the same advertised maximum read speed.
Compatibility note: SDXC-compatible devices generally support SDHC cards too, but older SDHC-only devices may not support SDXC. Check the device specifications before purchasing.