Sm3280aa Memory Bar 'link' -

The SM3280AA wins for flexibility and community support. The IS903 wins only for pure sequential speed with SLC NAND.

: In some cases, drives labeled this way are "fake capacity" units (e.g., a 32GB chip programmed to report as 2TB). Tools like F3 Pro or H2testw can verify the actual usable storage. sm3280aa memory bar

If you want, I can:

If you need a USB drive for critical data that you intend to use for 5+ years, avoid the cheap plastic brands and look for a memory bar explicitly listing the SM3280AA controller. Your future self, performing a firmware rescue via short-pins, will thank you. The SM3280AA wins for flexibility and community support

Based on its technical profile and common usage in generic "white-label" drives: High Potential Speeds: performing a firmware rescue via short-pins