Crucial 4Gb Lexar Media Professional Udma 300X Compactflash Cf4Gb-300-380 Storage Capacity - 4GB Technology - Compact Flash Manufacturer Warranty - Lifetime warranty Dimensions -- 1.6" Length x 1.4" Height x 0.13" Thick (40.6 mm x 35.6 mm x 3.3 mm) Compatibility -- CFA certified