128GB - SDSDUNB-128G-GN6IN Up to 140MB/s. 64GB - SDSDUNB-064G-GN6IN Up to 140MB/s. 32GB - SDSDUN4-032G-GN6IN Up to 120MB/s. 16GB - SDSDUNC-016G-GN6IN Up to 80MB/s. Model Numbers & Read Speeds.
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