SANDISK 128GB Extreme GO microSDXC UHS-I Card 5K & 4K UHD Video 240MB/s Read 120MB/s Write

SanDisk 128GB Extreme GO microSDXC UHS-I Memory Card | Up to 240MB/s Read / 120MB/s Write | A2 App Performance | V30 Video Speed Class | 4K UHD + 5K Video | UHS Speed Class 3 (U3) | Compatible with Android Smartphones, Action Cameras, Drones | Rugged: Temperature-Proof, Waterproof, Shockproof, X-Ray Proof | SD Adapter Included | 2-Year Warranty

The SanDisk Extreme GO 128GB microSDXC is a high-speed UHS-I memory card with up to 240MB/s sequential read and 120MB/s write speeds — designed for users who move large files fast and need a card that keeps up with continuous 4K UHD and 5K video capture without buffering or dropped frames. The read speed of 240MB/s makes file transfers from card to laptop meaningfully faster than standard Class 10 cards, which typically top out at 100MB/s; the write speed of 120MB/s provides sufficient sustained throughput for 4K video streams from action cameras, drones and high-end smartphone video modes. The V30 video speed class rating (minimum 30MB/s sustained write) is the standard threshold for 4K video recording, and the U3 designation confirms the same minimum in the UHS system. The A2 Application Performance Class rating confirms minimum sequential read of 4,000 IOPS and write of 2,000 IOPS — the standard that ensures apps installed directly on the card on Android devices load and run without the lag that lower-rated cards produce at random read/write operations. Built for outdoor use: temperature-proof, waterproof, shockproof and X-ray proof. SD adapter included for full-size SD card slot compatibility. 2-year warranty.