Wholesale CF Cards — Bulk Compact Flash Card Manufacturer

FAQ

Q1: What is the difference between CF cards and CFast cards?

CF (CompactFlash) cards use the PATA (Parallel ATA) interface with 50 pins and have been the industry standard for professional photography since 1994. CFast (CompactFast) cards use the SATA (Serial ATA) interface with a different connector and offer significantly faster transfer speeds. While CF cards typically max out at 167MB/s (UDMA 7), CFast 2.0 cards can achieve up to 600MB/s. Both formats remain relevant for professional cameras, with CF being more widely compatible and CFast offering superior performance for 4K/8K video.

Q2: What does the "X" speed rating mean on CF cards?

The "X" rating on CF cards is based on the original CD-ROM speed of 150KB/s. To calculate the actual transfer speed, multiply the X rating by 150KB/s. For example, a 300x CF card offers 300 × 150KB/s = 45,000KB/s or approximately 45MB/s. A 1000x card delivers about 150MB/s. It's important to note that these ratings typically indicate maximum read speeds, and write speeds may be lower. For professional photography and video work, we recommend UDMA 6 (100MB/s+) or UDMA 7 (167MB/s+) rated CF cards for consistent performance.

Q3: Are CF cards still relevant with SD cards offering similar capacities and speeds?

Yes, CF cards remain highly relevant for professional applications despite the popularity of SD cards. CF cards offer several advantages: superior physical durability due to their larger size and thicker construction, more robust pin connections (50 pins vs. SD's 9 pins), better heat dissipation during intensive write operations, and wider compatibility with legacy professional camera systems. Many high-end DSLR and medium format cameras continue to support CF cards exclusively or as the primary slot. For professionals who rely on maximum reliability and compatibility with existing equipment, CF cards remain a trusted storage medium.

Q4: What is the maximum storage capacity available for CF cards?

CF cards are available in capacities ranging from 128MB (legacy) up to 512GB in the current market. The most commonly used capacities for professional photography and video work are 32GB, 64GB, 128GB, and 256GB. As a leading CF card manufacturer, we offer a complete production line covering all capacity ranges to meet diverse customer needs. It's worth noting that while the CF specification theoretically supports higher capacities, the standard has been largely superseded by CFast and other formats for ultra-high-capacity applications. For most professional photography and video workflows, 128GB or 256GB CF cards provide an optimal balance of capacity, performance, and cost-effectiveness.

Q5: Do you offer bulk ordering and OEM branding options for CF cards?