SanDisk 128GB Extreme UHS-I MicroSDXC Memory Card

At 128GB the SanDisk 128GB Extreme UHS-I MicroSDXC Memory Card is the practical workhorse capacity for action cameras and drones — large enough for a full day of 4K footage, fast enough to handle it without hesitation. SanDisk QuickFlow Technology pushes sequential read to 190MB/s, making card-to-laptop transfers faster than the standard UHS-I 104MB/s ceiling. 90MB/s write sustains 4K UHD and 5K recording on compatible devices and handles high-speed JPEG burst sequences without camera buffer stalls. V30 (30MB/s minimum write) is the SD Association's threshold for 4K video capture — this card exceeds it comfortably. A2 app performance means it runs installed apps and games smoothly when used as expandable storage. The card is rated against shock, temperature extremes, water and X-ray. RescuePRO Deluxe data recovery software is included as a download. The lifetime SanDisk warranty covers this card for as long as you own it.QuickFlow Technology190MB/s Read — Beyond UHS-I StandardSanDisk QuickFlow Technology enables the Extreme to exceed the standard UHS-I interface ceiling of 104MB/s, reaching up to 190MB/s sequential read when paired with a compatible reader. In practical terms: a 64GB worth of 4K footage transfers to a laptop in around 5 minutes rather than 10. For photographers working with large RAW files from mirrorless cameras — where a single RAW burst can run to several gigabytes — the speed difference between a standard card and QuickFlow is meaningful time saved at the end of every shoot. Note: maximum speeds require a compatible reader; standard UHS-I readers will operate the card at up to 104MB/s.90MB/s Write · 4K + 5KV30 + U3 — Uninterrupted Video Capture90MB/s write speed handles 4K UHD at 60fps and 5K recording on compatible action cameras and drones. V30 guarantees a minimum sustained write of 30MB/s — the SD Association's threshold for reliable 4K UHD capture. U3 confirms the same for UHS-rated devices. In practice, 90MB/s write is fast enough that the camera's internal buffer rarely saturates during video recording or extended burst shooting. The 128GB capacity is sufficient for approximately 4 hours of 4K 30fps GoPro footage or around 100,000 JPEG photos at 12MP.A2 + RescuePROApp Performance + Data RecoveryA2 (Application Performance Class 2) delivers 4,000 random read IOPS and 2,000 write IOPS — the performance needed to run apps stored on the card without noticeable lag. For Nintendo Switch users, Android phones and tablets, and any device that installs apps or games to expandable storage, A2 means normal-speed app launching rather than the sluggishness of lower-rated cards. RescuePRO Deluxe (included as a download registration code) is a file recovery software that can restore accidentally deleted photos and videos from the card — a practical safety net for any serious shooting session.Great choice if you…✔ Use a GoPro, DJI drone or action camera for 4K or 5K recording✔ Shoot high-speed photo bursts on a smartphone or mirrorless camera✔ Need 128GB for a full day of shooting without card swaps✔ Want fast card-to-laptop transfer with a compatible reader✔ Use the card outdoors in demanding conditionsConsider something else if…✖ You need 200MB/s write speed — see SanDisk Extreme PRO✖ You need 256GB, 512GB or 1TB — see the larger Extreme capacities✖ You need extended write endurance for CCTV — see SanDisk High EnduranceTechnical SpecificationsBrand / ModelSanDisk Extreme microSDXCCapacity128GBRead SpeedUp to 190MB/s (QuickFlow Technology)Write SpeedUp to 90MB/sSpeed ClassUHS-I · U3 · V30 · A2 · Class 10Video4K UHD · 5K · Full HDProtectionShock · Temperature · Water · X-ray resistantWarrantyLifetime (SanDisk)Box Contents—SanDisk Extreme 128GB microSDXC card—SD adapter (full-size)—RescuePRO Deluxe download codeCompatible With—GoPro action cameras (Hero series)—DJI drones and gimbals—Android smartphones and tablets (microSD slot)—Nintendo Switch—Mirrorless and DSLR cameras with microSD slot—Cameras and laptops with SD slot (via adapter)ConditionBrand New — Retail PackagingWarrantyLifetime SanDiskDelivery4–5 Working Days · Fully TrackedAlso available: SanDisk Extreme 64GB. Browse the full microSD card range at maibo.