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64GB Micro SD Card 4K Ultra-HD Video Premium High Speed Memory Microsdxc Up To 100MB/S V30 UHS-I U3 A1 C10, by Integral : Amazon.co.uk: Computers & Accessories
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Integral 1TB Micro SD Card 4K Video Read Speed 180MB/s and Write Speed 150MB/s MicroSDXC A2 C10 U3 UHS-I 180-V30 Our Fastest Ever High Speed Micro SD Memory Card : Amazon.co.uk: Computers
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Speed Class | SD Association
