Hello all:

Someone gave me a PNY 256 gig flash memory stick, with USB 3.0 advertised.

However when uploading to it, the actual rate varies from around 1.5 MiB/sec to 10.6 Mib/sec, which is way lower than the advertised USB 3.0 speed of 5 GiB/sec (? if we believe the information below)

I ran the %lsusb command to try to see what is going on here.

Any ideas on why it will take hours to transfer 208 gigs to it?

- Randall

---------- information dump -----------

HP Z420 workstation USB Controller information
-----------------------------------------------

SYSTEM: OpenSuse Leap 15.4 on 64 bit hardware
Workstation has 2 USB3 ports and 1 USB2 port on the front panel

Operating System: openSUSE Leap 15.4
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.14.21-150400.24.55-default (64-bit)
Graphics Platform: X11
Processors: 6 × Intel® Xeon® CPU E5-1650 v2 @ 3.50GHz
Memory: 31.3 GiB of RAM
Graphics Processor: NV106

(from USB devices Info Center)
xHCI Host Controller (3)
Manufacturer: Linux 5.14.21-150400.24.55-default xhci-hcd
Serial #: 0000:08:00.0
Class 9 (Hub)
Subclass 0 (Unused)
Protocol 3
USB Version 3.00

Vendor ID 0x1d6b (Linux Foundation)
Product ID 0x0003 (3.0 root hub)

Speed 5,000 Mbit/s
Channels 4
Max. Packet Size 9

USB 3.2.1 FD

Manufacturer: PNY
Serial #: 071C2B1F12A4F803

Class 0 ((Defined at Interface level))
Subclass 0
Protocol 0
USB Version 3.20

Vendor ID 0x154b (PNY)
Product ID 0x1006

Speed 5,000 Mbit/s
Channels 0
Max. Packet Size 9

(from %lsusb -d 154b:1006 -v command)

PNY Flash Memory Stick - 256 gigs

Bus 003 Device 003: ID 154b:1006 PNY USB 3.2.1 FD
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.20
  bDeviceClass            0
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         9
  idVendor           0x154b PNY
  idProduct          0x1006
  bcdDevice            1.10
  iManufacturer           1 PNY
  iProduct                2 USB 3.2.1 FD
  iSerial                 3 071C2B1F12A4F803
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x002c
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              504mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk-Only
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               3
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               3
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