I have just bought a USB Stick (Flash Drive) from Philips. 32GB USB 3.0. I had some other problems with my USB 3.0 Installation but now this is resovled. My USB 3.0 hub is now a 7 Port USB 3.0 Metall HUB (EX-1188HMS) fron exsys. That hub is now really working. But my Philips stick is slow:
Copy large file to (Win8 OS Copy Speed):
USB2: Patriot Rage XT 16GB / NTFS / 50% full: 20MB/s
USB3: Philips USB 3.0 32GB / ProductID: FM32FD75B/10 / NTFS / empty: 9MB/s
Of course, the stick is not a high price superspeed device like my Patriot USB2.0, but why it is slower than USB2? At least it should be in some low speed USB3.0 speed rates.
And i have made some test with USB3.0 disks. The hub and connectivity are ok an the USB3.0 disk running at the 2x speed on USB3.0 compared to USB2.0.
Best Answer
The USB connection isn't the only possible bottleneck in this case. Cheap flash memory cells and their controllers usually provide low or very low data rates.
The Philips FM32FD75B/10 costs 20~25 € and specifies neither read nor write throughput. If they were beyond mediocre, Philips would most likely advertise them.
Also, writing to flash memory drives becomes slower, if they get filled close to their maximum capacity because of wear levelling.