Compact Flash (CF) The classic memory card. High Performance, Top-Quality, Guaranteed Compatibility Available in 32 GB, 16 GB, 8 GB, 4 GB and 2 GB Features: Ultra fast data transfer, up to 20MB /sec. Low energy consumption Integrated error correction technology (ECC) Ultra long lifetime, up to 100,000 write/read cycles Compatible with all common digital cameras, hand-held PCs and PDAs witha compact flash slot. Card format: 42.8 mm (W) x 36.4 mm (H) x 3.3 mm (T)