2 Pack Micro SD Card 256GB High-Speed Performance (140MB/s Read, 120MB/s Write), Supports 4K/8K Video Recording, Compatible with DSLR, Drone, Action Camera & Portable Devices

["High-Speed Measured Performance Laboratory-tested sequential read/write speeds up to 140MB/s and 120MB/s, supporting continuous 4K video recording. Performance may vary based on host device capabilities.","Rugged Design for Demanding Environments Engineered with triple-layer protection (temperature extremes/water immersion/mechanical shock).","Enhanced File Transfer Efficiency Reduced file transfer times by 65% vs. baseline microSD cards in real-world tests. Optimized for burst photography, HD video editing, and rapid app loading on compatible devices.","Broad Device Compatibility Functions with microSD-enabled electronics including Android devices, dash cams, and handheld systems. For optimal performance, confirm host device supports UHS-I protocol and exFAT format.","US-Focused Support Commitment 1-year product reliability assurance . Note: Warranty covers manufacturing defects, not performance degradation over time."]