Bests & Worsts Reviews from Amazon

Samsung BAR Plus 128 GB Flash Drive. I was testing USB ports and cables for a new computer build using ATTO Disk Benchmark version 4.00.0f2. with the following settings: Direct I/O – enabled Bypass Write Cache – enabled (to see the real speed) Verify Data – enabled I/O Size – 512 B to 64 MB File Size – 256 MB Test Pattern – Random Typical Write Speed – 48 MB/s to 50 MB/s (with block sizes over 128 KB) Typical Read Speed – 280 MB/s to 320 MB/s (with block sizes over 128 KB) After about 80 to 100 passes the Write Speed would erratically drop to 8 MB/s to 12 MB/s. Not particular to any data block size – will happen on small, medium and large block sizes. Sometimes for just a couple test patterns and sometimes for 2-3 full passes of ATTO. The Read Speed stayed consistent at 280 MB/s – 320 MB/s. No data was corrupted or lost – just erratic write speeds. The metal casing would get warm but never hot to the touch. Amazon sent me another Samsung BAR Plus 128 GB Flash Drive. It did the exact same thing after about 80 to 100 passes of the ATTO Disk Benchmark test. I sent both back. I really like all the features of this flash drive. I hope Samsung will fix the erratic write speeds on the next version. I will buy it again if they do.