Best CFexpress Type B Cards in 2026
Choosing the best CFexpress Type B card in 2026 is no longer as simple as buying the model with the biggest read-speed number on the box. The market now spans mature PCIe 3.0 cards, dramatically faster CFexpress 4.0 options, VPG-certified cinema media, and high-capacity models designed for long 8K or RAW recording days. Just as importantly, performance can change substantially by capacity: a 512GB version may have a very different minimum sustained write speed from the 1TB or 2TB card carrying the same name.
For this guide, we compared current manufacturer specifications, capacity-specific sustained-write claims, warranty and durability policies, workflow features, independent benchmark findings, and overall value. Our ranking favors dependable recording performance over headline burst figures. A card rated at 3,700 MB/s read will not make a PCIe 3.0 camera write at that speed, but CFexpress 4.0 can still cut transfer times when paired with a USB4 reader and fast computer storage.
The recommendations below cover flagship cinema cards, balanced all-rounders, budget-friendly choices, and proven older media. Always check your camera maker’s approved-media list for the exact recording mode and capacity you plan to use. For most photographers, 512GB or 1TB is the practical sweet spot; demanding RAW-video crews should prioritize an explicitly stated minimum sustained write speed and keep at least two tested cards in rotation with confidence.
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Best CFexpress Type B Cards in 2026: Quick List
- SanDisk Extreme PRO CFexpress 4.0 Type B — Best overall
- Lexar Professional DIAMOND CFexpress 4.0 Type B — Best maximum sustained performance
- Wise Advanced PRO CFexpress 4.0 Type B Mark II — Best for professional cinema
- Delkin Devices BLACK CFexpress Type B 4.0 — Best support and replacement policy
- Nextorage NX-B2PRO CFexpress 4.0 Type B — Best for thermally demanding shoots
- Angelbird AV PRO SE CFexpress B v4 Mark II — Best high-capacity value
- OWC Atlas Ultra CFexpress 4.0 Type B — Best card-management ecosystem
- ProGrade Digital Iridium CFexpress 4.0 Type B — Best VPG400 alternative
- Wise Advanced CFexpress 4.0 Type B Mark II — Best balanced Wise option
- Lexar Professional GOLD CFexpress 4.0 Type B — Best mainstream high-capacity card
- ProGrade Digital Gold CFexpress 4.0 Type B — Best capacity-specific value
- Delkin Devices POWER CFexpress Type B 4.0 — Best affordable fast offload
- Wise Advanced CFexpress 4.0 Type B — Best first-generation 4.0 bargain
- Sony TOUGH CFexpress Type B — Best rugged PCIe 3.0 choice
- SanDisk Extreme PRO CFexpress Type B — Best proven legacy option
CFexpress Type B Card Comparison
| Rank | Card | Interface | Claimed Max Read / Write | Key Strength |
|---|---|---|---|---|
| 1 | SanDisk Extreme PRO 4.0 | PCIe 4.0 | 3,700 / 3,500 MB/s | Exceptional 2TB–4TB sustained rating |
| 2 | Lexar DIAMOND 4.0 | PCIe 4.0 | 3,700 / 3,400 MB/s | 3,200 MB/s minimum sustained claim |
| 3 | Wise PRO 4.0 Mark II | PCIe 4.0 | Up to 3,700 / 3,500 MB/s | Cinema-oriented sustained performance |
| 4 | Delkin BLACK 4.0 | PCIe 4.0 | 3,700 / 3,220 MB/s | VPG400 and 48-hour replacement |
| 5 | Nextorage NX-B2PRO | PCIe 4.0 | Up to 3,900 / 3,600 MB/s | Power and thermal management |
| 6 | Angelbird AV PRO SE v4 Mark II | PCIe 4.0 | 3,700 / up to 3,500 MB/s | Strong capacity-scaled sustained speeds |
| 7 | OWC Atlas Ultra 4.0 | PCIe 4.0 | 3,650 / 3,000 MB/s | Innergize health and firmware tools |
| 8 | ProGrade Iridium 4.0 | PCIe 4.0 | 3,550 / 3,000 MB/s | VPG400, pro-focused capacities |
| 9 | Wise 4.0 Mark II | PCIe 4.0 | Up to 3,500 / 3,000 MB/s | Good balance of speed and cost |
| 10 | Lexar GOLD 4.0 | PCIe 4.0 | Up to 3,600 / 3,300 MB/s | Wide 512GB–4TB range |
| 11 | ProGrade Gold 4.0 | PCIe 4.0 | 3,400 / 3,000 MB/s | Excellent 1TB and 2TB sustained rating |
| 12 | Delkin POWER 4.0 | PCIe 4.0 | 3,650 / 3,240 MB/s | Fast, high-capacity value |
| 13 | Wise 4.0 | PCIe 4.0 | Capacity dependent | Potential discount buy |
| 14 | Sony TOUGH Type B | PCIe 3.0 | Up to 1,850 / 1,600 MB/s | Excellent physical durability |
| 15 | SanDisk Extreme PRO Type B | PCIe 3.0 | Up to 1,700 / 1,400 MB/s | Broad compatibility and mature record |
Manufacturer speed claims are capacity dependent and represent controlled-test maxima or stated minimums. Camera write speed, firmware, temperature, reader, cable, and destination drive can all limit real-world results.
How We Ranked the Cards
Our order weighs sustained write performance and recording reliability most heavily, followed by capacity choice, independent test behavior, warranty/support, durability, reader-side transfer speed, and value. CFexpress 4.0 cards are backward-compatible with many CFexpress 2.0 Type B hosts, but they normally run at the host’s PCIe 3.0 ceiling in older cameras. VPG400 certification is especially useful for workflows that demand a guaranteed 400 MB/s floor, although the camera manufacturer’s approved-media list remains the final authority.
1. SanDisk Extreme PRO CFexpress 4.0 Type B Card — Best Overall
Specifications
- Capacities: 128GB, 256GB, 400GB, 1TB, 2TB, 4TB
- Interface: CFexpress 4.0 / PCIe Gen4
- Rated speed: up to 3,700 MB/s read and 3,500 MB/s write
- Minimum sustained write: 900 MB/s (128GB–400GB), 1,950 MB/s (1TB), 3,100 MB/s (2TB–4TB)
- Lifetime limited warranty; rated for five-meter drops and 70N bend resistance
In-Depth Review
SanDisk’s new 4.0 generation takes the top position because the range combines broad capacity choice with unusually transparent, capacity-specific sustained-write figures. The 2TB and 4TB versions are the standouts: their stated 3,100 MB/s minimum is more relevant to long high-resolution takes than a momentary peak. The 1TB card remains a strong all-rounder, while smaller versions trade sustained performance for lower cost. Older PCIe 3.0 cameras will not exploit the headline throughput, but a USB4 reader can make large offloads dramatically faster. This is the most complete option for buyers who want one card family that scales from stills to serious cinema work.
Best For
Hybrid professionals, 8K/12K-capable cinema workflows, and users who want very fast USB4 offloads. Choose 1TB or larger for the strongest sustained-write specification.
SanDisk Extreme PRO CFexpress 4.0 Type B at B&H, Adorama.
2. Lexar Professional DIAMOND CFexpress 4.0 Type B Card — Best Maximum Sustained Performance
Specifications
- Capacity: 1TB
- Interface: CFexpress 4.0 / PCIe Gen4
- Rated speed: up to 3,700 MB/s read, 3,400 MB/s write
- Minimum sustained write: 3,200 MB/s
In-Depth Review
The DIAMOND is a focused flagship rather than a broad family. Its 1TB capacity and exceptionally high stated sustained-write floor make it one of the most compelling cards for data-heavy RAW video and long bursts. It is also an excellent ingest card when paired with a genuine 40Gb/s reader and sufficiently fast SSD. The trade-off is obvious: many stills cameras cannot exploit the extra headroom, and the premium is hard to justify for ordinary 4K or occasional bursts. Buy it for a verified demanding mode, not merely because the label shows the largest number.
Best For
High-end RAW video, virtual production, and professionals who need the strongest published sustained-write figure in a 1TB card.
Lexar Professional DIAMOND CFexpress 4.0 Type B at B&H, Adorama.
3. Wise Advanced PRO CFexpress 4.0 Type B Mark II Memory Card — Best for Professional Cinema
Specifications
- Interface: CFexpress 4.0 / PCIe Gen4
- Performance and capacities vary by exact Mark II PRO SKU
- Designed for high-resolution cinema capture and sustained workloads
In-Depth Review
Wise’s PRO Mark II line is aimed at crews who care more about stable recording than benchmark screenshots. Its place near the top reflects that cinema-first positioning and the brand’s emphasis on sustained operation. The important buying step is to match the exact capacity to both Wise’s current specification sheet and the camera maker’s approved list; similarly named Wise cards span several generations. When verified for the intended codec, the PRO Mark II is a credible alternative to Lexar DIAMOND and SanDisk’s largest 4.0 cards. It is excessive for casual stills, but sensible when a failed take costs far more than the media.
Best For
Production teams recording high-bitrate RAW or intraframe video for extended periods.
Wise Advanced PRO CFexpress 4.0 Type B Mark II at B&H.
4. Delkin Devices BLACK CFexpress Type B 4.0 Card — Best Support and Replacement Policy
Specifications
- Capacities: 512GB to 2TB
- Interface: CFexpress 4.0
- Rated speed: up to 3,700 MB/s read and 3,220 MB/s write
- VPG400; lifetime warranty
- Serialized card and 48-hour replacement program
In-Depth Review
Delkin BLACK combines serious speed with one of the most photographer-friendly support packages in the category. VPG400 certification supplies a meaningful recording floor, while serialization and the company’s 48-hour replacement policy matter to working professionals who cannot wait weeks for warranty processing. BLACK costs more than POWER, but the premium buys a stronger sustained-performance focus and support safety net. It is a particularly good fit for action photographers and filmmakers using modes for which the camera maker or Delkin specifically recommends BLACK.
Best For
Working professionals who value VPG certification, rapid replacement support, and consistent burst/video behavior.
Delkin Devices BLACK CFexpress Type B 4.0 at B&H.
5. Nextorage NX-B2PRO CFexpress 4.0 Type B Card — Best for Thermally Demanding Shoots
Specifications
- Interface: CFexpress 4.0
- Rated speed: up to approximately 3,900 MB/s read and 3,600 MB/s write, capacity dependent
- Power-saving system designed to reduce heat and throttling
- pSLC-oriented professional design
In-Depth Review
Nextorage’s NX-B2PRO distinguishes itself with an engineering focus on power draw and thermal stability. That matters because sustained recording can be limited by heat even when a card posts superb short benchmarks. Independent testing has shown the series to be extremely fast, although the practical advantage inside current cameras is smaller than the reader-side numbers suggest. It is an excellent specialist card for long bursts, outdoor heat, and large offloads, but availability and pricing can vary more than with SanDisk or Lexar.
Best For
Sports, wildlife, and cinema shooters concerned about thermal throttling during sustained workloads.
Nextorage NX-B2PRO CFexpress 4.0 Type B at B&H, Adorama.
6. Angelbird AV PRO SE CFexpress B v4 Mark II — Best High-Capacity Value
Specifications
- Capacities: 512GB, 1TB, 2TB, 4TB
- Rated read: up to 3,700 MB/s
- Sustained write: 1,050 MB/s (512GB), 2,100 MB/s (1TB), 3,150 MB/s (2TB/4TB)
- Stable Stream technology and firmware-updatable design
In-Depth Review
Angelbird publishes unusually useful capacity-specific sustained figures, making the AV PRO SE v4 Mark II easy to match to a workload. The 2TB and 4TB versions are the stars, combining very high stated sustained speed with the storage needed for long recording days. The 512GB model is considerably slower, though still ample for many cameras. Angelbird’s firmware tools can be valuable, but users should verify both firmware and camera compatibility before an important shoot. At the right price, the larger cards offer one of the strongest performance-per-terabyte propositions.
Best For
Long-form 8K and RAW recording, especially buyers comparing 2TB and 4TB media.
Angelbird AV PRO SE CFexpress B v4 Mark II at B&H, Adorama.
7. OWC Atlas Ultra CFexpress 4.0 Type B Card — Best Card-Management Ecosystem
Specifications
- Interface: CFexpress 4.0, backward-compatible with 2.0 hosts
- Rated speed: up to 3,650 MB/s read and 3,000 MB/s write
- Minimum sustained write: up to 1,500 MB/s
- Innergize health monitoring, performance restoration, and firmware updates
- Three-year limited warranty
In-Depth Review
The Atlas Ultra is a well-rounded professional card whose differentiator is OWC’s Innergize software. Monitoring card health, restoring performance, and applying field updates can be more useful over years of ownership than a small benchmark win. Independent reviews have also found strong real-world behavior and very quick Gen4 offloads. The quoted sustained speed does not lead the newest 2TB and 4TB rivals, and the warranty is shorter than some lifetime policies, but the complete card-and-reader ecosystem is excellent.
Best For
Professionals who want health monitoring, firmware management, and a cohesive USB4 workflow.
OWC Atlas Ultra CFexpress 4.0 Type B at B&H, Adorama.
8. ProGrade Digital Iridium CFexpress 4.0 Type B Card — Best VPG400 Alternative
Specifications
- Capacities: 400GB, 800GB, 1.6TB
- Rated speed: up to 3,550 MB/s read and 3,000 MB/s burst write
- VPG400 certified
- Minimum sustained write: capacity dependent, up to 1,500 MB/s
In-Depth Review
Iridium fills the space between mainstream Gold media and ultra-premium specialist cards. Its 400GB, 800GB, and 1.6TB capacities suit production planning, while VPG400 makes the recording floor explicit. ProGrade’s Refresh Pro and recovery-oriented ecosystem add practical value for teams maintaining a fleet of cards. Peak speeds trail the newest flagships, yet the predictable video focus is often more important. Buyers should compare the sustained specification of the exact capacity, since it is not identical across the family.
Best For
Video professionals who want VPG400 assurance and production-friendly capacities.
ProGrade Digital Iridium CFexpress 4.0 Type B at B&H, Adorama.
9. Wise Advanced CFexpress 4.0 Type B Mark II Memory Card — Best Balanced Wise Option
Specifications
- Interface: CFexpress 4.0
- Available in multiple capacities, with capacity-specific performance
- Up to roughly 3,500 MB/s read and 3,000 MB/s write on selected variants
In-Depth Review
The non-PRO Mark II is the sensible Wise choice for users who want Gen4 transfers without automatically paying for the cinema-focused flagship. It offers enough headroom for demanding mirrorless cameras and can substantially accelerate ingest with a USB4 reader. Its main challenge is naming: first-generation, Mark II, and PRO Mark II cards can look similar in listings. Verify the full product name, capacity, and SKU before purchase. When discounted, it delivers a strong blend of speed and capacity.
Best For
Hybrid shooters seeking a fast, modern Wise card without flagship pricing.
Wise Advanced CFexpress 4.0 Type B Mark II at B&H.
10. Lexar Professional GOLD CFexpress 4.0 Type B Card — Best Mainstream High-Capacity Card
Specifications
- Capacities: 512GB to 4TB
- Interface: CFexpress 4.0
- Rated speed: up to 3,600 MB/s read and 3,300 MB/s write
- Sustained performance varies by capacity
In-Depth Review
Lexar GOLD 4.0 offers the broad capacity range most creators actually need, from a practical 512GB card through a huge 4TB option. It is fast enough for demanding photography and video, and it pairs naturally with Lexar’s USB4 Workflow reader. DIAMOND remains the better choice when the highest documented sustained floor is essential, but GOLD is usually the more rational purchase. Check the exact capacity because smaller and larger versions do not share identical sustained behavior.
Best For
Creators who want a mainstream Gen4 card with a wide choice of capacities.
Lexar Professional GOLD CFexpress 4.0 Type B at B&H, Adorama.
11. ProGrade Digital Gold CFexpress 4.0 Type B Card — Best Capacity-Specific Value
Specifications
- Capacities: 240GB, 512GB, 1TB, 2TB
- Rated speed: up to 3,400 MB/s read and 3,000 MB/s write
- Minimum sustained write: about 700 MB/s (240GB), 850 MB/s (512GB), 1,500 MB/s (1TB/2TB)
In-Depth Review
ProGrade Gold becomes much more attractive at 1TB and 2TB, where the published minimum sustained speed rises to 1,500 MB/s. The 512GB model is still a capable photography and general-video card, but buyers should not assume it matches the larger versions under long writes. ProGrade’s workflow software and reader range strengthen the package. This is a smart value choice when the 1TB card is on promotion and your camera does not require a higher VPG tier.
Best For
Value-conscious hybrid shooters; the 1TB and 2TB capacities are the preferred versions for demanding video.
ProGrade Digital Gold CFexpress 4.0 Type B at B&H, Adorama.
12. Delkin Devices POWER CFexpress Type B 4.0 Card — Best Affordable Fast Offload
Specifications
- Capacities: 512GB, 1TB, 2TB
- Rated speed: up to 3,650 MB/s read and 3,240 MB/s write
- Lifetime warranty and 48-hour replacement policy
- Sustained performance varies by capacity
In-Depth Review
Delkin POWER 4.0 is one of the better routes to fast Gen4 offloads without BLACK-series pricing. Independent buying-guide testing has highlighted its strong performance-per-dollar, while Delkin’s lifetime warranty and rapid replacement program remain major advantages. The compromise is lower sustained write performance than the most video-focused cards, particularly at 512GB. It is excellent for high-resolution stills, moderate video, and creators who value quick ingest, but BLACK is safer for a camera mode that explicitly requires it.
Best For
Photographers and hybrid creators wanting large capacities, rapid downloads, and strong support at a lower price.
Delkin Devices POWER CFexpress Type B 4.0 at B&H, Adorama.
13. Wise Advanced CFexpress 4.0 Type B Card — Best First-Generation 4.0 Bargain
Specifications
- Interface: CFexpress 4.0
- Multiple capacities with capacity-dependent read, write, and sustained ratings
- Backward-compatible with supported CFexpress Type B hosts
In-Depth Review
The original Wise CFexpress 4.0 Type B remains relevant mainly when heavily discounted. It can deliver excellent reader-side transfers and ample performance for many cameras, but the Mark II versions are clearer choices for a new professional workflow. Retail listings sometimes shorten the product name, so confirm that the card is neither a PCIe 3.0 model nor the newer Mark II. Treat it as a value play rather than the default Wise recommendation.
Best For
Experienced buyers who find a verified first-generation Gen4 SKU at a substantial discount.
Wise Advanced CFexpress 4.0 Type B at B&H.
14. Sony TOUGH CFexpress Type B Memory Card — Best Rugged PCIe 3.0 Choice
Specifications
- Capacities include 240GB, 480GB, 960GB, and 1.92TB in the newer range
- Interface: CFexpress Type B / PCIe Gen3
- Selected newer models: up to 1,850 MB/s read and 1,600 MB/s write
- Rated for drops up to five meters and 70N rigidity
In-Depth Review
Sony TOUGH cannot match Gen4 transfer speeds, yet it remains a strong field card for users who prioritize physical resilience and a mature design. The newer 240GB and 480GB models improve performance over the original generation, while the reinforced construction suits travel, news, and harsh locations. Value is the weakness: Sony pricing can approach faster Gen4 alternatives. It makes the most sense when listed on your camera’s approved-media chart or when durability outweighs ingest speed.
Best For
Field photographers, news crews, and owners of PCIe 3.0 cameras who prioritize ruggedness.
Sony TOUGH CFexpress Type B at B&H, Adorama.
15. SanDisk Extreme PRO CFexpress Type B Card — Best Proven Legacy Option
Specifications
- Capacities: 64GB, 128GB, 256GB, 512GB
- Interface: CFexpress Type B / PCIe Gen3
- Up to 1,700 MB/s read and 1,400 MB/s write on the 512GB card
- Lifetime limited warranty and RescuePRO Deluxe offer
In-Depth Review
The original Extreme PRO helped establish CFexpress Type B as dependable professional media. Its broad camera compatibility and long market history are advantages, but its published specifications lack the detailed sustained-write guarantees found on newer cinema-oriented cards. That makes it best for stills, established 4K workflows, or replacing an identical approved card. Buy only at a meaningful discount: the new 4.0 version offers far more headroom and larger capacities.
Best For
Owners of older Type B cameras, conservative workflows, and bargain hunters replacing proven media.
SanDisk Extreme PRO CFexpress Type B at Amazon, B&H.
CFexpress 4.0 vs. CFexpress 2.0: Do You Need the Upgrade?
For in-camera use, only if your camera can exploit it or the newer card offers a better sustained-write guarantee. Many current cameras still use a PCIe 3.0 host, so a Gen4 card operates at the camera’s lower ceiling. The larger benefit often appears after the shoot: a CFexpress 4.0 card, USB4 reader, 40Gb/s cable, and fast NVMe destination drive can slash ingest time. If any link in that chain is slower, the transfer falls to the slowest component.
What Capacity Should You Buy?
- 128GB–256GB: economical for stills, backup rotation, and shorter clips, but often the slowest capacity in a series.
- 400GB–512GB: a practical minimum for hybrid work and a useful balance of cost and shoot duration.
- 1TB: the sweet spot for high-resolution hybrid and RAW-video shooters; many families also improve sustained speed here.
- 2TB–4TB: best for long-form cinema, travel, or fewer card swaps, but increases the amount of work exposed to a single-card failure.
Frequently Asked Questions
Are CFexpress 4.0 Type B cards backward-compatible?
Generally yes, with cameras and readers that properly support CFexpress Type B, but they operate at the host’s supported speed. Always confirm the exact camera, firmware, card model, and capacity.
Does a 3,700 MB/s card make my camera faster?
Not necessarily. The figure is usually a best-case sequential read speed. Camera writing is limited by the camera interface, processor, codec, buffer, firmware, temperature, and the card’s sustained behavior.
Is VPG400 required for 8K video?
Not universally. VPG400 guarantees a 400 MB/s minimum under the certification conditions, but each camera and codec has its own requirement. Follow the camera manufacturer’s approved-media list.
Should I format the card in the camera?
Yes. After backing up your files, format the card in the camera that will use it. Avoid deleting files repeatedly on a computer as a substitute for in-camera formatting.
Final Verdict
The SanDisk Extreme PRO CFexpress 4.0 Type B is our best overall choice because it combines a wide capacity range, excellent durability, and especially strong capacity-specific sustained-write ratings. The Lexar DIAMOND 4.0 is the specialist pick for maximum 1TB sustained performance, while the Delkin BLACK 4.0 offers the most reassuring professional support package. Buyers seeking value should compare the 1TB versions of ProGrade Gold, Delkin POWER, and Angelbird AV PRO SE v4 Mark II. Whatever you choose, verify the exact capacity against your camera’s approved list and test every card before a paid assignment.
Read more: Best CFexpress Type A Cards.