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DIY CFexpress Type-B: A Cost-Effective, High-Capacity Solution for Photographers and Videographers

Chris Chen

5/8/20244 min read

If you’re a photographer or videographer looking to upgrade your storage game without breaking the bank, a DIY CFexpress Type-B card might just be the perfect solution. At filmgig.co.uk, we’ve been diving deep into the world of memory cards, and we’re excited to share why building your own CFexpress Type-B card offers unbeatable value, higher capacity at the same price and speed, and reliable performance for both daily and professional shoots. Let’s break it down.

Why Go DIY? Higher Cost-Effectiveness and Capacity

CFexpress Type-B cards are the gold standard for modern high-end cameras, delivering blazing-fast speeds that SD cards can only dream of. But here’s the catch: branded CFexpress cards can cost a small fortune—think hundreds of dollars for just 512GB or 1TB. A DIY approach flips that narrative on its head. By pairing an NVMe SSD with a CFexpress Type-B adapter, you can create a card that’s not only more cost-effective but also offers significantly higher capacity at the same price point and speed as off-the-shelf options.

For example, a premium 1TB CFexpress Type-B card from a big-name brand might set you back $400 or more. With a DIY setup, you can grab a high-quality 1TB NVMe SSD and an adapter for less than half that price—sometimes as low as $150-$200 depending on the components. And if you’re willing to push the envelope, you can even build a 2TB card for less than what a branded 1TB card costs. More storage, same speed, lower price. That’s a win-win for anyone who shoots high-resolution photos or 4K/8K video.

Speed Depends on Your SSD Choice

One of the coolest things about a DIY CFexpress Type-B card is that its performance hinges on the SSD you choose. CFexpress Type-B uses a PCIe interface (typically Gen 3.0 x2), which means it can theoretically hit speeds up to 2000MB/s read and write—plenty fast for most cameras. But here’s the kicker: the actual speed of your DIY card will depend on the SSD you slot into the adapter.

Pick a high-end SSD like the Sabrent Rocket 2230 or Samsung PM991a, and you’re looking at read speeds north of 1700MB/s and write speeds around 1500MB/s—numbers that rival or even beat many branded CFexpress cards. Need something for daily work like stills or 4K video? A mid-tier SSD will still deliver sustained write speeds of 800-1000MB/s, more than enough for most shoots. For professional gigs—say, 8K RAW video—you’ll want an SSD with a high sustained write speed (think 1300MB/s or more) to keep up with your camera’s demands. The flexibility to tailor your card’s performance to your needs is a huge advantage over pre-built options.

Why We Recommend 1MemDev’s CFexpress Type-B Adapter

Now, let’s talk about the adapter—the unsung hero of any DIY CFexpress setup. At filmgig.co.uk, we’ve tested a bunch of options, and we wholeheartedly recommend the 1MemDev CFexpress Type-B adapter. Yes, it’s pricier than some generic adapters out there, but trust us—it’s worth every penny for the peace of mind and safety it delivers.

What sets 1MemDev apart? First, it features a hot-swap gold finger design. That means you can plug and unplug the card without worrying about damaging it or your camera—super handy if you’re swapping cards mid-shoot. Second, the adapter’s motherboard includes power protection capacitors. These little gems ensure that power surges or interruptions during insertion/removal don’t fry your SSD or corrupt your data. It’s a small detail, but it makes a massive difference in reliability, especially for pros who can’t afford to lose a single frame.

Sure, you could save a few bucks with a no-name adapter, but those often lack these advanced features. We’ve seen cheaper options overheat, fail under heavy use, or even cause compatibility issues with cameras like the Nikon Z8 or Canon R5. With 1MemDev, you’re investing in what we believe is the safest CFexpress Type-B adapter on the market. It’s built to last, and it keeps your data secure—priceless when you’re shooting a once-in-a-lifetime moment.

Perfect for Daily and Work Shooting

Whether you’re a hobbyist capturing weekend adventures or a pro filming a client project, a DIY CFexpress Type-B card with the 1MemDev adapter has you covered. For daily shooting—think portraits, landscapes, or casual 4K video—a mid-range SSD paired with this adapter delivers fast buffer clearing and plenty of storage. For work shoots, like wildlife photography at 20fps or 8K video production, you can spec it up with a high-performance SSD to handle the heaviest workloads without breaking a sweat.

We’ve tested these setups in real-world scenarios, and they hold up beautifully. The combination of high capacity, customizable speed, and 1MemDev’s rock-solid reliability means you can focus on your craft instead of fussing with gear limitations.

Final Thoughts

Building your own CFexpress Type-B card is a game-changer. It’s cheaper than branded alternatives, offers more storage for the same price and speed, and—when paired with the 1MemDev adapter—delivers top-tier safety and performance. At filmgig.co.uk, we’re all about empowering creators with smart, practical solutions, and this DIY option checks every box. So, grab an SSD, snag a 1MemDev adapter, and unlock a memory card that’s as powerful as it is affordable. Your wallet (and your camera) will thank you.

Happy shooting!
The FilmGig Team