Features:

• 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

Editor Reviews:

Product Description:
UDMA CompactFlash (CF) technology provides the ultimate high-speed memory card performance for professional photographers and photo enthusiasts. The Lexar Professional UDMA 300x memory card dramatically increases card-to-computer transfer rates when paired with an UDMA-enabled Firewire 800 Reader. This provides support for the next generation of high-resolution UDMA-enabled digital SLR (DSLR) cameras. The Lexar Professional UDMA 300x CF card provides advanced memory card performance so you can focus on the business of photography at incredibly fast download speeds to satisfy the demand for faster transfer rates from card to computer, drastically reducing post-production time. These cards deliver industry-leading read/write speeds with a minimum sustained write speed capability of a blazing 300x (up to 45MB/sec).

Rating : - Excellent performance
The Lexar Professional UDMA 4GB CompactFlash card is awesome. Plenty of storage space plus superb speed.