Details: 1000x CompactFlash (Ultimate) To ensure high-quality image and video capture with today's cutting-edge digital equipment, Transcend's 1000x CompactFlash memory cards meet CompactFlash 6.0 specifications, offering incredible high-speed performance and impressive storage space. The 1000x CompactFlash cards implement the Video Performance Guarantee (VPG-20) to enable professional-quality video recording without dropping frames, even in 3D. The top-tier MLC NAND flash chips inside are durable and reliable. Specifications: Dimensions : 42.8mm x 36.4mm x 3.3mm (1.69" x 1.43" x 0.13") Weight : 11.4g (0.4 oz) Operating Voltage : 3.3V~5V Operating Temperature : -25°C (-13°F) ~ 85°C (185°F) Durability : 10,000 insertion/removal cycles Performance (Max.) : Read 160 MB/s, write 120 MB/s Warranty : Limited Lifetime Warranty Note : Speed may vary due to host hardware, software and usage.