The SDSQXGN-256G-GN6MN is listed as a SanDisk Extreme Go 256GB microSDXC memory card, with V30 video performance, U3 speed classification and A2 application performance.
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Product specifications
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Model: SDSQXGN-256G-GN6MN
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Brand: SanDisk
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Series: Extreme Go
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Capacity: 256GB
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Format: microSDXC
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Interface: UHS-I
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Video speed class: V30
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Speed classes: U3, Class 10
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Application class: A2
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Maximum read speed: 240 MB/s
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Maximum write speed: 160 MB/s
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Warranty: Limited lifetime, according to your supplied description; regional terms may vary.
Extreme Go capacity comparison
| Capacity | Model | Read speed | Write speed |
|---|---|---|---|
| 32GB | SDSQXGN-032G-GN6MN | 100 MB/s | 60 MB/s |
| 64GB | SDSQXGN-064G-GN6MN | 170 MB/s | 80 MB/s |
| 256GB | SDSQXGN-256G-GN6MN | 240 MB/s | 160 MB/s |
All three are listed as V30, U3, Class 10 and A2 cards.
Key takeaway: The 256GB model offers eight times the storage of the 32GB version and the highest advertised speeds of these three models.
Note that the advertised maximum speeds may require a compatible reader or host device. For continuous CCTV recording, also verify sustained write performance, endurance and camera compatibility.