Samsung PRO Endurance New Portable SSD for monitoring devices is built to last up to 140K hours of recording (256GB model).** This solid state drive stands up against magnets¹, X-rays², water³, drops⁴ and more. Record and play in FHD and 4K. The PRO Endurance is engineered to deliver long lasting performance.*Actual usable storage capacity is measured with SD Formatter 3.1 tool with exFAT file system and may be less than labeled capacity. **Varies by capacity: 256GB model up to 140,160 hours, 128GB model up to 70,080 hours, 64GB model up to 35,040 hours, 32GB model up to 17,520 hours. Based on Full HD(1920x1080) video content recorded at 26Mbps (3.25MB/s). Actual continuous recording time may vary depending on battery capacity of camera.