Lightning-Fast Speed for Flawless Frames:​ Our CFexpress™ cobalt memory cards were engineered with a write speed of 1500MB/s, allowing your burst of shots to be as clear and breathtaking as ever. Optimized for 4K, 5K, 6K and beyond, make every frame a work of art with these deluxe memory cards. Plus, its extreme speed alleviates you from the frustration of dropped frames. | Advanced Technology that Uses Less Camera Battery​: Now even your storage accessories can help protect your camera from flatlining in mid shot. You might already know of the Prograde Digital™ reputation for high-end digital products, but our Gold & Cobalt series sd cards were optimized above and beyond to keep your camera's battery running longer so you can capture more. Not too shabby considering these large sd storage cards were also designed for continuous video shots. | The Fastest Data Transfer Speeds Available (XQD™ Devices Included):​ Not only do these cards have a supercharged speed of 1700MB/s, but they're also backward compatible with your XQD devices. Using your device’s latest firmware update, it’s optimized for accelerated data transfer utilizing PCIe 3.0 and NVMe. BONUS: Our Prograde Digital Refresh Pro™ software is available separately to help maintain your card speed for years to come & restore corrupted files! | Exceptional Cards that Go Beyond the Duty of Normal Accessories:​ Whether your photography is your livelihood or life’s passion, you invested your time and money into it. Starting with your camera and blossoming to your flash, your stand and your memory card... Make sure the accessories you surround yourself with match the passion you've poured into capturing your art. Wow your clients, friends & family with quality they've never seen before, thanks to your CFexpress camera card by Prograde. | Triple The Protection Creates Ease on Every Level:​ At Prograde, we set out to do one thing: deliver the best camera accessories on the market. Our CFexpress storage cards took that promise to a whole new level. So we've also backed every memory card with a (1) 3-year warranty, (2) a custom, laser-etched serial number to keep counterfeits at bay, and (3) created additional Advanced Recovery Pro Software to restore damaged files. These cards carry our triple-threat, ultimate guarantee.