Description
Product Overview
The OWC Atlas Ultra CFexpress Type B 4.0 memory card is engineered for high-speed performance, catering to the rigorous demands of professional content creators. It features ultra-fast write speeds up to 3000MB/s and read speeds up to 3650MB/s, with a minimum sustained write speed of 1500MB/s for consistent real-world performance. This card is built to handle advanced use cases like fast burst RAW image sequences and high-bitrate video recording up to 8K and beyond. Constructed with durability in mind, it resists impact, bending, shock, ESD, UV rays, and X-rays, ensuring reliability in various conditions. Compliant with CFexpress Type B 1.0, 2.0, and 4.0 specifications, it is fully compatible with a wide range of DSLR, mirrorless, cinema, and high-end video cameras. Backed by a 3-year OWC limited warranty, it includes RED certification and TAA compliance for added assurance.

Usage
This memory card is ideal for professional filmmakers and advanced photographers who require uninterrupted high-speed data transfer. It excels in environments such as on-location video shoots, studio photography sessions, and outdoor adventures where capturing 8K video or continuous burst mode images is essential. Target users include videographers recording high-bitrate footage, photographers shooting fast-action sequences, and content creators working with large file formats. Its robust design makes it suitable for harsh conditions, from extreme temperatures to frequent handling, ensuring consistent performance when it matters most.
Why Choose Us
OWC stands out by delivering memory cards that combine cutting-edge speed with unwavering reliability. The Atlas Ultra CFexpress card is RED certified, meeting stringent standards for professional video applications, and is TAA compliant for government and institutional use. Its high sustained write speeds prevent dropped frames and buffer issues, giving creators the confidence to push creative boundaries. With a focus on quality materials and rigorous testing, OWC ensures each card performs optimally under pressure, backed by a comprehensive warranty and dedicated customer support.
Key Features
- Ultra-high write and read speeds up to 3000MB/s and 3650MB/s for seamless data handling
- Minimum sustained write speed of 1500MB/s ensures reliability in demanding professional scenarios
- Full compatibility with CFexpress Type B specifications and a wide range of cameras
- Durable construction resistant to impact, shock, ESD, UV rays, and X-rays
- RED certified and TAA compliant for professional and institutional applications
FAQ
What cameras are compatible with this CFexpress card?
This card is fully compatible with a variety of DSLR, mirrorless, cinema, and high-end video cameras that support CFexpress Type B, including models from major brands like Canon, Nikon, and Sony.
How does the sustained write speed benefit professional use?
The minimum sustained write speed of 1500MB/s ensures consistent performance during extended recording sessions, such as 8K video or rapid burst photography, reducing the risk of data loss or interruptions.
Is the card durable enough for outdoor and travel use?
Yes, it is built to withstand impact, bending, shock, ESD, UV rays, and X-rays, making it suitable for rugged environments and frequent travel without compromising performance.
What warranty and certifications does this product have?
It comes with a 3-year OWC limited warranty and is RED certified for video reliability and TAA compliant for adherence to trade agreements, ensuring quality and trustworthiness.
Can it handle high-bitrate video recording for 8K content?
Absolutely, with write speeds up to 3000MB/s and high sustained performance, it is optimized for high-bitrate 8K video recording and other advanced creative workflows.






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