With the SanDisk Extreme 128GB(1) microSD UHS-I Memory Card get extreme speeds for fast transfer, app performance, and 4K UHD video.(2) Ideal for your Android smartphone, action cameras or drones, this high-performance microSD card handles 4K UHD video recording, Full HD video and high-resolution photos. The super-fast SanDisk Extreme microSDXC memory card reads up to 160MB/s and writes up to 90MB/s. Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience.(7) | Not all devices support microSD memory card formats. Check with your device manufacturer for more details. | For 128GB-400GB: Up to 160MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Up to 90MB/s write speeds. 1MB=1,000,000 bytes. | (1) 1GB=1,000,000,000 bytes. Actual user storage less. | (2) Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160) support may vary based upon host device, file attributes and other factors. | (3) Download and installation required. | (4) Card only. See SanDisk website for additional information and limitations. | (5) UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. 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. | (6) Registration required; terms and conditions apply. | (7) For 64GB-400GB: A2 performance is 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type and other factors. | (8) Read only; based on internal testing. Results may vary based on host device, file attributions and other factors.
Enormous capacity but Android has trouble keeping apps in the card
I am not a phone gamer. I didn't buy this card to get gaming speed, but to store the huge files that result from 4K or 8K recordings, to take movies with me on the road, store tons of pictures and most importantly offload my Android apps from internal storage.
Worked perfect in my Galaxy S9 plus and now my LG Wing.
I got this card for my galaxy S9. It had a very good chip installed in it before (Samsung 256G Evo Select) which I liked. But I wanted to max out my S9 both in its 400G max capacity and in the speed to record. This chip/card does record 1080p 60fps with no problems at all.
Like many of the other reviewers pointed out, this card is fraudulent. "U3" and "A2" my ass! The read/write speeds are nowhere near the advertised values. I'm getting 74/66 MB/s which is worse than my Samsung 128GB U1 microSD.