SanDisk Extreme 256 GB microSDXC Memory Card + SD Adapter with A2 App Performance + Rescue Pro Deluxe, Up to 160 MB/s, Class 10, UHS-I, U3, V30, Red/Gold

Product Information

The reader built into your average laptop might not be capable of reading from or writing to the fastest cards at their full speed, and we’ve found huge variations in external readers, even those bundled with high-performance cards.

SanDisk Extreme® microSDXC™ UHS-I CARD, 4K UHD, Full HD SanDisk Extreme® microSDXC™ UHS-I CARD, 4K UHD, Full HD

A1 is one of the many irritatingly obtuse acronyms from the world of memory and storage (see the bottom of this page for our glossary), and all it really means is that the card is rated to meet a certain speed. The HC in SDHC stands for High Capacity, and the choice of those words is what left the industry needing XC soon after. For 256GB-1TB: Up to 190MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. I would imaging that due to the small size and weight dropping the card is going to do little, especially when housed inside a drone or actionGiving the card an extensive test over three weeks, its integrity remained intact, and there were no issues with dropped or corrupted files. With over 20 years of expertise as a tech journalist, Adam brings a wealth of knowledge across a vast number of product categories, including timelapse cameras, home security cameras, NVR cameras, photography books, webcams, 3D printers and 3D scanners, borescopes, radar detectors…and, above all, drones. You still have to understand the different specifications such as whether you want a V30 card, an SDXC card, an A1 capacity card, or whether it's Class 10 or UHS-II and while all this can be overwhelming, we'll help you work it all out with the glossary below.

SanDisk 256GB Extreme microSDXC UHS-I Memory Card with SanDisk 256GB Extreme microSDXC UHS-I Memory Card with

Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. With SanDisk® QuickFlow™ Technology 10 (64GB - 1TB), this card optimizes performance for timesaving media offloads with quick read speeds up to 190MB/s. For 64GB: Up to 170MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. With both cameras, the MicroSD card performed well with the cameras buffers taking any slack in the speed of the storage.It’s far from cheap and we suspect most smartphones won’t use its full performance, but it’s a sign of where things are going. Based on internal testing; performance may be lower depending upon host device interface, usage conditions, and other factors. With up to 400GB 1, the SanDisk Extreme® microSD™ UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings. Note that the Ultra card is available in larger sizes - but with the SDXC logo which will mean it will be incompatible with these older devices).