The Ultra DMA (Ultra Direct Memory Access, UDMA) modes are the fastest methods used to transfer data through the ATA hard disk interface, usually between a computer and an ATA device.

Aug 5, 2013 · Get the world’s first high-capacity CompactFlash card with Video Performance Guarantee-65 (VPG-65).

Dec 3, 2024 · UDMA 7 stands for Ultra Direct Memory Access 7, which is a protocol used for transferring data between a computer’s hard drive and its memory. It is a type of interface that enables the transfer of data at high speeds, making it an essential component of modern computer systems.

UDMA rating The UDMA rating determines the maximum bus speed at which a card can read, assuming the memory in the card is fast enough to match it. UDMA 1 supports speeds up to 16.7 MB/s. UDMA 7 is ten times that speed, maxing out at 167 MB/s. This is the minimum sustained write speed —the slowest the card will write.

Ideal for use with mid-range to high-end DSLR cameras and HD camcorders, the SanDisk Extreme CompactFlash Memory Card delivers first-rate read/write speeds to catch fast action shots and enable quick file transfers.

Buy Manfrotto 64GB Professional UDMA 7 Compact Flash Memory Card featuring 64GB Storage Capacity, UDMA 7, Max Read Speed: 160 MB/s, Max Write Speed: 130 MB/s, Records 4K and Full HD Video, Capture Raw and JPEG Photos, Withstands up to 80 lb of Force, Withstands Temperature Extremes.

Designed for professionals, the card features Video Performance Guarantee-652, which ensures smooth video capture. Additionally, write speeds of up to 140 MB/s3 allow photographers to shoot in continuous burst-mode, capturing multiple frames per second without lag time.

Buy SanDisk 32GB Extreme CompactFlash Memory Card featuring 32GB Storage Capacity, Read Speed up to 120 MB/s, Write Speed up to 85 MB/s, UDMA 7 Compliant, Limited Lifetime Warranty.

I plan to test the Transcend 16GB UDMA 7 1000x CompactFlash card in a few different DSLRs to see how much difference it actually makes for shooting high-speed still photo bursts, and for full HD video.