Odd, working fine here and mounting in dolphin as normal. The Jetflash is plugged into a USB 3 port
[michael@GA-AM1M-S2H ~]$ lsusb
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 005: ID 04f2:0116 Chicony Electronics Co., Ltd KU-2971/KU-0325 Keyboard
Bus 006 Device 004: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 006 Device 006: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 006 Device 002: ID 05e3:0604 Genesys Logic, Inc. USB 1.1 Hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 8564:1000 Transcend Information, Inc. JetFlash
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[michael@GA-AM1M-S2H ~]$ lsusb -t
/: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/4p, 12M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 12M
|__ Port 2: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 3: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
|__ Port 4: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
/: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/4p, 12M
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/4p, 480M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
|__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/4p, 480M
|__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M