UHS-I and UHS-II (Ultra High Speed) are bus interfaces that indicate the maximum data transfer speed of an SD card. UHS-I cards have a single row of pins and offer speeds up to 104 MB/s, while UHS-II cards have two rows of pins and can reach speeds up to 312 MB/s.
Both the SanDisk Extreme and the EVO Select by Samsung have the same 90MBps write speed and while the 160MBps read speed is better on the Extreme, it isn't $27 better. Which should you get?
SanDisk 32GB SDHC Micro Ultra Memory Card Works with Samsung Galaxy A50, A40, A30 Cell Phone Class 10 (SDSQUAR-032G-GN6MN) Bundle with (1) Everything But Stromboli MicroSD and SD Card Reader dummy SanDisk 64GB Ultra microSDXC UHS-I Memory Card with Adapter - Up to 140MB/s, C10, U1, Full HD, A1, MicroSD Card - SDSQUAB-064G-GN6MA
Transfer speed benchmarking program Crystal Disk Mark provided sequential read speeds of 120 MB/s and write speeds of 68 MB/s for the Extreme Go, far less than the 200 and 150 MB/s SanDisk advertises. Our manual USB 3.0 tests proved far better. Writing a 1.1GB, 32-minute HD video to the USB only took about 10 seconds with a very satisfying 120
SanDisk Extreme 128GB A2 The "Extreme" card we tested is just a bit more expensive than the last one at $25-30. Like the previous card, it doesn't quite meet rated performance levels.
The comparison SanDisk Ultra Vs Extreme Micro SD is quite straightforward. SanDisk Ultra is an excellent choice for those who want to store essential documents and photos, while SanDisk Extreme is ideal for storing high-quality videos and pictures.
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is sandisk ultra or extreme better