Delkin Devices Black 512GB CFexpress Type B 4.0 VPG400 Memory Card (High-speed for 8K RAW)
Product description
The essentials
If you’re shooting serious video or burst-heavy RAW stills, storage speed stops being a “nice to have” and starts to affect whether your footage stays smooth. This Delkin Devices Black 512GB CFexpress Type B 4.0 card is positioned for professional photography and videography work, where sustained performance matters as much as peak numbers.
On paper, the headline is speed: claimed read speeds up to 3700MB/s and write speeds up to 3220MB/s. For workflows like high-frame-rate 4K/6K/8K RAW recording, that spec-led approach is the point. The other big theme is recording stability, backed here by a VPG400 certification intended to support sustained write speeds of 2040MB/s for uninterrupted capture.
Still, it’s not a magic fix for every camera setup. The practical value depends a fair bit on whether your camera supports CFexpress Type B and whether its processor and recording mode can actually make use of what the card can deliver.
What to know before you buy
This is a CFexpress™ Type B card in a 4.0 generation framing, aimed at continuous-burst shooting and video recording. The card is described as being optimised for pro use, including RAW continuous-burst shooting and real-time broadcasting.
Key limitations to keep in mind
- If your camera doesn’t support CFexpress Type B (and the right performance expectations), you won’t benefit from the speed figures.
- Even when compatibility is right, sustained performance only helps if you’re recording in modes that generate the data rate this card is designed for.
Where it shines in real use
The most convincing part of this card’s pitch is the combination of high throughput and a VPG400 guarantee style rating. Instead of only talking about fast transfers, it’s framed around staying fast during recording. For example, if you’re filming an 8K RAW sequence at high frame rates, you generally don’t want the card to slow down mid-take, that’s where sustained write capability is meant to count.
It also suits photographers who rely on RAW continuous-burst shooting. In the field, that translates to more dependable capture during fast action—less time waiting for the camera to “catch up”, more time keeping your sequence going.
Durability and data protection
This model is described as built for demanding environments. It’s claimed to be shockproof, waterproof, and resistant to temperature extremes. That matters if you shoot outside, travel, or work around unpredictable conditions—rain, dust, cold mornings, and busy sets all tend to be harsher than spec sheets admit.
There’s also a security-minded detail: each CFexpress card is uniquely serialised. For professional workflows where asset management and chain-of-custody can matter, that kind of identification can be useful—though it won’t replace good backup habits.
Key specifications (as stated)
- Name: Delkin Devices Black 512GB CFexpress™ Type B 4.0 VPG400 Memory Card
- Type: CFexpress™ Type B
- Capacity: 512GB
- Read speed (up to): 3700MB/s
- Write speed (up to): 3220MB/s
- Video Performance Guarantee rating: VPG400
- Sustained write speed (for recording): 2040MB/s
Pros
- Designed for sustained video recording, with a stated VPG400 certification and sustained write target
- High-speed read/write figures are aimed at heavy RAW and high-bitrate scenarios
- Built for tough conditions (shockproof, waterproof, temperature resistance as claimed)
- Serialised cards for added traceability in professional workflows
What might not suit everyone?
This card makes the most sense if you’re actually using a camera mode that stresses write speeds—think 4K/6K/8K RAW recording at high frame rates, or continuous-burst RAW capture. If you’re mostly doing lighter work (lower bitrate footage, compressed formats, or occasional bursts), you may find the performance ceiling is overkill.
It can also be a mismatch if your priority is purely faster offloading for occasional clips rather than long takes—because sustained recording is the stated focus, not just quick transfer.
Final verdict
It’s worth considering if you need a CFexpress Type B card that’s built around sustained video performance (VPG400) and you shoot RAW-heavy work where dropped frames would be painful. The durability claims and serialisation are a nice bonus for professionals who work in less forgiving conditions.
You may want to skip it if your camera doesn’t support CFexpress Type B, or if your typical settings don’t demand sustained high write speeds. In those cases, spending on peak-style performance can leave you paying for capability you won’t use.
Mini FAQ
1) What does VPG400 mean for video recording?
The listing positions VPG400 as a Video Performance Guarantee aimed at sustained write performance, with a stated sustained write speed target for uninterrupted recording.
2) Is this card only for 8K?
No—it's described as enabling seamless 8K, 6K, and 4K RAW recording at high frame rates, so it’s relevant across those RAW scenarios.
3) Will I notice the speed if I’m not recording RAW?
Maybe, but likely not in the way the headline figures suggest. The core advantage here is sustained write performance for demanding capture modes.
4) How durable is it?
It’s claimed to be shockproof, waterproof, and resistant to temperature extremes, designed for tough shooting environments.