New
#1
External 3.5" Buffalo USB 3.0 drive only connects at USB 2.0 mode
I have a desktop PC that does not come with any USB 3 ports on its mainboard. Yesterday I bought a PCI-E to USB 3.0 expansion card with two ports.
I installed the card, connected the floppy power cable, and windows 10 installed its driver with no issues. There is no yellow mark in the device manager.
First I connected my USB 3.0, 2.5" Seagate drive and windows properly recognized it and set its speed at USB 3.0. I copied a lot of files at a constant max speed of about 95 MB/s. So far everything is good.
Then I tried my 3.5" Buffalo USB 3.0 drive. No matter what I did, it simply would not connect at USB 3 speed, only USB 2. I tried both ports. The drive's external power adapter is connected.
Windows does know that it's a USB 3 device, since it shows the message "This device can perform faster if connected to USB 3.0".
The drive does come with a cable with blue USB 3 connectors.
Anyone ever experienced such an issue before?