The SDSQXAV-256G-GN6MN is listed as a SanDisk Extreme 256GB microSDXC card. Compared with the Ultra Go cards you listed earlier, this model has a specified faster write speed and additional performance ratings for applications and video recording.
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Product specifications
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Model: SDSQXAV-256G-GN6MN
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Brand: SanDisk
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Series: Extreme
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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: 190 MB/s
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Maximum write speed: 130 MB/s
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Warranty: Limited lifetime, as stated in your description; regional terms may vary.
Comparison with the Ultra Go 256GB
| Specification | Extreme 256GB | Ultra Go 256GB |
|---|---|---|
| Model | SDSQXAV-256G-GN6MN | SDSQUGN-256G-GN6MN |
| Read speed | Up to 190 MB/s | Up to 190 MB/s |
| Write speed | Up to 130 MB/s | Not specified in your description |
| Video class | V30 | Not specified |
| UHS speed class | U3 | Not specified |
| Application class | A2 | Not specified |
| Best suited for | Higher-performance video and app workloads | General storage, subject to device requirements |
Recommendation: The Extreme card is the stronger choice on the specifications provided for high-bitrate video recording, action cameras, and compatible devices requiring V30/U3 performance. For 24/7 CCTV recording, however, verify the card's endurance rating and the camera manufacturer's compatibility recommendations; fast write speed alone does not guarantee long service life.