The Hoodman RAW Steel Class-7 16 GB CompactFlash Card features SSD flash inside. SSD (Solid State Drive) Flash is designed to replace hard drives in computers, it is the most stable, reliable flash you can put in A CompactFlash Memory Card. SSD lasts through 500,000 (half a million) cycles of life. One cycle of life equals filling the memory card and then reformatting the card. Using this state-of-the-art technology keeps RAW CF cards shooting 490,000 times beyond the point where its competitors fail.The Hoodman RAW Compact Flash Card is a UDMA Mode 7 device, which maximizes the performance of cameras using the UDMA protocol. UDMA cards will work with both non-UDMA and UDMA-enabled devices. UDMA will also dramatically increase the card-to-computer transfer rates when paired with a UDMA-enabled reader.