long time ago, i purchased an 64GB Lexar 1000x µSD card, wanted to go faster, and made the mistake to format in a wrong block size... also made another mistake, sending several GB of files in 1 copy & paste. Result: µSD overheated and got permanently damaged, Fast forward Yesterday,.... i purchased a 2TB PNY XLR8 CS3140, formatted to XFS, sent several GB of files in 1 move & delete. Result: CS3140 overheated and got permanently damaged, New, 1 hour of use. The problmem is low efficiency, low MB/s per Watt Low Efficiency = Heat, Heat kills NAND modules. you can blame PNY switching to cheaper 112-Layer Kioxia TLC (BiCS5) in the 2TB model. instead of the original 176-Layer Micron TLC (B47R) in 1TB model. you can blame the CS3140 2TB Firmware, but in the End is Temperature... Linux OS should monitor PCIe / SSD drive SMART temperature... and Pause File Transfer Automatically until Temperature return to Normal. Give a Warning, and countdown clock or cancel transfer button. There is No point to continue file transfer if drive gets damaged, after transfer is complete. Rabbit vs. Turtle story. i was using USB3.1 enclosure with RTL9210-2 / -CG controller... <500MB/s Drive is Rated for 7000MB/s Enclosure has No problem using higher efficiency M.2 drives. https://www.pny.com/company/support/solid-state-drives https://www.tomshardware.com/reviews/pny-xlr8-cs3140-ssd-review/2 https://www.orico.cc/us/product/detail/8039.html
