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TOPRAM specializes in high capacity high performance data storage and communication media. Our memory cards and memory modules are designed for wide range of applications. Compatible devices include Cell Phones, PDAs, MP3 Players, Digital Cameras, and Tablet.
Class 10 Speed Rating
UHS Class 1
USB 3.0 (Test Matrix)
Read up to 55MB/s
Write up to 20MB/s
USB 3.0 FDBench
Read up to 53MB/s
Write up to 18MB/s
Read up to 20MB/s
Write up to 15MB/s
Good card, poor reader
This review is from: TOPRAM 32GB SD 32G SDHC Card Class 10 Ultra High Speed UHS-I for Camera & Camcorder with R16 Reader
Pros: Card performed well using a different reader (built into a slightly older computer). Clocked sequential reads at 65MBps and writes at 26MBps. Created and copied a 30GB file to it, and verified that checksum was okay (so the capacity is real)
Cons: Included reader is mechanically stiff and not that easy to insert card into or to extend the USB plug; fear of damaging card. Reader is USB2.0 and fairly slow. I plugged into USB3 port and clocked it at 17.6 MBps read and 11.1 MBps write over an extended period. Same throughput whether using original FAT32 filesystem, ext2, or accessing it as a raw block device in Linux.
Other Thoughts: For $2-3 above the price of the card you get a USB reader that handles the high capacity, but doesn't allow the card to reach its speed potential.
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