The CFexpress market offers fast, reliable storage for high-end cameras and cinema workflows. This guide highlights five top CFexpress Type B cards that optimize speed, capacity, and durability for professional photography and video production. Each entry includes key specs drawn from product features to help you compare performance at a glance.
| Brand | Product | Capacity | Key Strength |
|---|---|---|---|
| ProGrade Digital | CFexpress 4.0 Type B Gold | 240GB | Ultra-fast sustained writes; high read speeds; efficiency |
| Delkin Devices | POWER 4.0 CFexpress | 512GB | High burst performance; durable, water/shock resistant |
| Nextorage | CFexpress 4.0 Type B | 512GB | Industry-leading read/write speeds; reliability |
| Delkin Devices | POWER 4.0 CFexpress | 1TB | Extreme speeds; large capacity for raw/video |
| ProGrade Digital | CFexpress 4.0 Type B Iridium | 400GB | Balanced speed with rugged performance |
Below, explore each card’s capabilities, ideal use cases, and compatibility considerations to help you choose the right CFexpress Type B card for your shooting style and gear.
ProGrade Digital 240GB CFexpress 4.0 Gold Series
The 240GB Gold Series from ProGrade Digital is built for sustained high-speed performance, with writes reaching up to 700MB/s and read speeds around 3100MB/s. It’s optimized for 4K, 6K, and 8K workflows, helping prevent dropped frames during bursts. The card emphasizes efficiency, including tech designed to minimize camera battery drain during long sessions. Compatibility extends to devices supporting PCIe 1.4c and NVMe interfaces, with ProGrade Refresh Pro software available separately to maintain card speed and recover data over time.
Key considerations
- Best for high-frame-rate bursts and professional video recording.
- Ideal pairing with cameras that support PCIe 1.4c and NVMe interfaces.
- Software option for long-term maintenance and data integrity.
Delkin 512GB POWER CFexpress 4.0 Type B
Delkin’s 512GB POWER CFexpress Type B card delivers burst read speeds up to 3650MB/s and burst write speeds up to 3240MB/s, with a sustained write around 820MB/s. It’s positioned for 4K, 6K, and 8K capture and supports quick offload for fast post-production. The design emphasizes durability with shockproof and waterproof construction and ships with a protective storage case, making it suitable for field work where rugged reliability is essential.
Key considerations
- Very high burst performance suitable for cinema-style workflows.
- Durable build helps in harsh shooting environments.
- Includes protective storage case for transport safety.
Nextorage 512GB CFexpress 4.0 Type B
Nextorage, a Japanese brand with deep Sony camera heritage, offers a 512GB CFexpress 4.0 Type B card engineered for high-speed transfers and reliable operation. The card is designed to support demanding creative workflows, with transfer speeds stated at class-leading levels and a focus on long-term reliability. This makes it a strong option for professional photographers and videographers who depend on fast data offloading and durable performance in studio and outdoor shoots alike.
Key considerations
- Strong reliability pedigree from a legacy of Sony-related development.
- High-speed read/write suitable for 4K/6K workflows.
- Balanced option for those who value proven engineering in CFexpress cards.
Delkin 1TB CFexpress 4.0 Type B
The Delkin 1TB POWER CFexpress card targets professionals who need ample capacity without sacrificing speed. It offers burst read speeds up to 3650MB/s and burst write speeds up to 3240MB/s, with a sustained write around 1570MB/s. This wide-capacity option supports 4K, 6K, and 8K recording, enabling long shoots and large RAW libraries. The card is designed for durability with shockproof and waterproof construction and includes a compact protective case for field use.
Key considerations
- Large capacity reduces the need for frequent card swaps on long shoots.
- Extremely high read/write speeds support fast backups and editing.
- Rugged construction suits outdoor and professional environments.
ProGrade Digital 400GB CFexpress 4.0 Iridium Series
The ProGrade Digital Iridium Series emphasizes a balance of speed and reliability, with sustained write speeds of 850MB/s and peak writes around 1500MB/s. It’s optimized for 4K, 6K, and 8K workflows and is VPG 400 certified, ensuring consistent performance for professional video capture. Like other ProGrade cards, it supports backward compatibility with compatible interfaces and benefits from ProGrade’s software tools for maintaining speed and recovering data over time.
Key considerations
- Excellent reliability for long shooting sessions and post-production.
- VPG 400 certification supports consistent video quality.
- Compatibility with PCIe 1.4c and NVMe-enabled devices for fast transfers.
Buying Guide: Key Purchase Considerations
- Capacity vs. workload: If you shoot keynote events or long sessions, prioritize 512GB to 1TB cards to minimize swapping. For rapid-once-off shoots, 240GB or 400GB may suffice.
- Speed requirements: Burst photography and 4K/6K/8K footage demand high sustained writes. Look for cards with sustained write speeds above 700MB/s and high read speeds (2000–3600MB/s range) to accelerate offloads.
- Device compatibility: Verify your camera or workflow supports CFexpress 4.0 Type B and PCIe 1.4c/NVMe interfaces. Some cards also advertise backward compatibility with other card formats.
- Durability and field use: Weatherproof, shockproof, and waterproof designs help in rugged environments. A protective case adds convenience for in-field shoots.
- Software and maintenance: Some brands offer software to optimize performance and recover data. Consider including this if your workflow involves frequent large file transfers or archival needs.
- Brand ecosystem and support: Reputable brands with robust warranties and customer support can reduce risk in critical production work.
- Cost of ownership: While higher-capacity and higher-speed cards improve workflow, balance budget with actual shooting needs and backup strategies (spare readers, spare cards, and reliable offload routines).