I am a long time fan of Sandisk products. I use them almost daily and highly recommend them, by name, to colleagues. I see others are having performance issues also. Tech support and chat have not been any help. There 2 answers are…
1.Format the drive
- Copy 1 file at a time
I’ve formatted the drive a few times to either FAT32 or NTFS. Makes no difference. I am a computer technician. When I use my flash drive, I copy whatever a customer needs and that may come in hundreds of files and folders. Copying one file at a time could take hours so this is not a reasonable suggestion. since my customers pay me hourly.
I could actually accept the answer that all 16GB cruzers are that slow but support won’t comment on this. Does anyone know if this is a Sandisk only issue or are other brand’s faster.
I would like to post my test results.
Sandisk USB flash drive: sdcz36-016g black bl1106wz0b
System: Dell Inspiron 531 desktop.
Specs: Windows 7 Home Premium 32bit will all updates,USB 2.0, AMD Athlon 64 X2 5000+, 3.5GB Memory.
Test-file: One folder containing 93 sub-folders, 407 files, total of 6.8GB.
Test1: Copy Test-file from Sandisk to C:\temp folder.
Stats and results: Speed was a steady 13.2MB/sec. Total time 8min 41 seconds.
Per Sandisk Tech support, I formatted the flash drive before Test2.
Test2: Copy Test-file from C:\temp to Sandisk.
Stats and results: Speed constantly goes down. Intervals and speed readings follow.
Time interval Speed in MB/s
1 min 10.8
2 min 7.17
5 min 4.93
10 min 4.18
15 min 3.98
20 min 3.90
25 min 3.82
30 min 3.76
32 min 37 sec 3.52 (finish)