PNY 256GB Elite-X Class 10 U3 V30 MicroSDXC Flash Memory Card
The PNY Elite-X 256GB micro SD card is rated class 10, U3, which s fast transfer speeds so you can quickly transfer and share your content while you're on the go. Performing at read speeds of up to 100MB/s, It is perfect for use with the latest smartphones, tablets, action cameras, 360O cameras, drones and more. Rated A1 for better app performance on Android devices, PNY Elite-X allows users to run apps faster and directly from the Micro SD card, saving more space on smartphones. PNY Elite-X also features V30 video speed Class ideal for 4K Ultra HD video at 4096x3072 format.

SanDisk 128GB Extreme MicroSDXC UHS-I Memory Card with Adapter - C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-128G-GN6MA
With the SanDisk Extreme 128GB microSD UHS-I Memory Card get extreme speeds for faster 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. 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.