) Compact flash is the world's most popular removable mass storage device 2) The compact flash card is about the size of a matchbook, and only weighs half oz 3) Capacities: 128M, 256M, 512M, 1G 4) Dimensions: 36. 4 x 42. 8 x 3. 3mm (CF Type 1) 5) Speed: 3. 7 - 6MB/s (read rate), 1. 5 - 5MB/s (write rate) 6) Operating temperature: 0 ~ 60℃ / 32 - 140℉ 7) Storage temperature: -20 ~ +85℃/ -4 ~ 185℉ 8) Voltage: 5V 9) Standard: Complies with Compact Flash Association specification standards 10) Small: One-third the size of a full-size PC card 11) Easy: Plug-and-Play 12) Guaranteed: 1 year warranty 13) Versatile: Compatible with PC Card Type II adapters 14) Economical: Auto-sleep mode preserves system battery life.