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Amazon.com: SanDisk 64GB Ultra UHS-I Class 10 U1 SDXC Memory Card, 100MB/s Read and 10MB/s Write Speed : Electronics
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Amazon.com: SanDisk Ultra 64GB microSDXC UHS-I Card with Adapter, Grey/Red, Standard Packaging (SDSQUNC-064G-GN6MA) : Electronics
SanDisk - Here's a breakdown of what the various symbols on a memory card refer to: 1. Maximum speed the card reads (transfers) files 2. Maximum speed the card writes (captures)
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SanDisk 1TB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 120MB/s (SDSQUA4-1T00-GN6MA) - Newegg.com
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Review: SanDisk Ultra 80MB/s microSDXC 64GB UHS-I Memory Card - Camera Memory Speed Comparison & Performance tests for SD and CF cards
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Review: SanDisk Ultra Plus UHS-I V10 A1 128GB microSDXC Memory Card - Camera Memory Speed Comparison & Performance tests for SD and CF cards
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