The Grainger 14F256 is a 256MB CompactFlash memory card. It has a sustained read speed of 21MB/s and a sustained write speed of 12MB/s. This industrial grade CompactFlash card is designed for use in harsh environments with an operating temperature range of -40°C to 85°C. The card has built-in error correction (ECC) and wear leveling to ensure reliable performance. With its durable design, high storage capacity, and fast transfer speeds, this CompactFlash card is well-suited for industrial applications.