The SDSQXCJ-512G-GS6MA is listed as a SanDisk Extreme PRO 512GB microSDXC memory card, offering twice the storage of the 256GB model while retaining the same advertised read and write speeds.
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Product specifications
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Model: SDSQXCJ-512G-GS6MA
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Brand: SanDisk
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Series: Extreme PRO
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Capacity: 512GB
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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: 250 MB/s
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Maximum write speed: 170 MB/s
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Warranty: Limited lifetime, according to your supplied description; regional terms may vary.
Extreme PRO capacity comparison
| Capacity | Model | Read speed | Write speed |
|---|---|---|---|
| 32GB | SDSQXCO-032G-GS6MA | 100 MB/s | 90 MB/s |
| 64GB | SDSQXCU-064G-GS6MA | 200 MB/s | 90 MB/s |
| 128GB | SDSQXCJ-128G-GS6MA | 250 MB/s | 120 MB/s |
| 256GB | SDSQXCJ-256G-GS6MA | 250 MB/s | 170 MB/s |
| 512GB | SDSQXCJ-512G-GS6MA | 250 MB/s | 170 MB/s |
Key takeaway: The 512GB model offers 16 times the capacity of the 32GB model and twice that of the 256GB model, with the same advertised maximum speeds as the 256GB version.
Note that actual speeds depend on the host device and card reader. For continuous CCTV recording, verify the camera's maximum supported capacity and the card's endurance specifications before purchasing.