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SanDisk Extreme 64 USB 3 speed test benchmark and review

 
Today I bought SanDisk Extreme USB 3.0 Flash Drive, in this day fastest affordable USB flash drive, SDCZ80-064G G46 series for Europe. (manufacturer's website)

It came preformated with FAT32. 

Overall performance with FAT 32 on WIndows 7 x64 HP EliteBook 8560w USB 3 drivers enabled write speed 47 MB / sec read 120 MB / sec.

On Ubuntu 12.04 x64 HP EliteBook 8540w USB 3 driver enabled (see lsusb output below), write speed up to 90 MB / sec read average 101 MB / sec.

Unpartitioned ( so theory )

After removing partitions I ran bench-marking software from Disk Utility on Ubuntu, write speed up to 96.3 MB / sec but average just over 80 MB / sec. Read speed maximum 146.5 MB /sec on average 140.5 MB / sec see graph below. 


NTFS

Because I use both Windows and Ubuntu machines, disk is now formated to NTFS, on larger files sizes range from 400 to 700 MB, read speed is up to 82 MB / sec and write speed up to 76 MB / sec - so back to earth :)

Lsusb output in tree

$ sudo lsusb -t
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
    |__ Port 1: Dev 11, If 0, Class=stor., Driver=usb-storage, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
    |__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/8p, 480M
        |__ Port 3: Dev 6, If 0, Class=HID, Driver=usbhid, 12M
        |__ Port 3: Dev 6, If 1, Class=HID, Driver=usbhid, 12M
        |__ Port 3: Dev 6, If 2, Class=HID, Driver=usbhid, 12M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M
    |__ Port 1: Dev 2, If 0, Class=hub, Driver=hub/6p, 480M
        |__ Port 5: Dev 7, If 0, Class='bInterfaceClass 0x0e not yet handled', Driver=uvcvideo, 480M
        |__ Port 5: Dev 7, If 1, Class='bInterfaceClass 0x0e not yet handled', Driver=uvcvideo, 480M

lsusb verbose output for Bus 04

Bus 004 Device 011: ID 0781:5580 SanDisk Corp. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         9
  idVendor           0x0781 SanDisk Corp.
  idProduct          0x5580 
  bcdDevice            0.10
  iManufacturer           1 SanDisk
  iProduct                2 Extreme
  iSerial                 3 AA011004141655014594
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           44
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    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              15
      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              15
Binary Object Store Descriptor:
  bLength                 5
  bDescriptorType        15
  wTotalLength           22
  bNumDeviceCaps          2
  USB 2.0 Extension Device Capability:
    bLength                 7
    bDescriptorType        16
    bDevCapabilityType      2
    bmAttributes   0x00000002
      Link Power Management (LPM) Supported
  SuperSpeed USB Device Capability:
    bLength                10
    bDescriptorType        16
    bDevCapabilityType      3
    bmAttributes         0x00
      Latency Tolerance Messages (LTM) Supported
    wSpeedsSupported   0x000e
      Device can operate at Full Speed (12Mbps)
      Device can operate at High Speed (480Mbps)
      Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport   1
      Lowest fully-functional device speed is Full Speed (12Mbps)
    bU1DevExitLat           7 micro seconds
    bU2DevExitLat         101 micro seconds
Device Status:     0x0000
  (Bus Powered)

Review:

Overall looks are fine, but product is too large (see photo below), so I can not work my mouse, USB 3 slots are only on one side of my notebook, same on all others in our office. Other USB flash drives we use are significantly smaller, person can work and have it plugged in, not this one. 

SanDisk Extreme 64 USB 3 size plugged in

Package photo unwrapped:

SanDisk Extreme 64 USB 3 package

Product is made in China. Plastic cover does not look cheap, slide in - out mechanism works great, it has a lock so once ejected it does not slide in by creating pressure on the connector, you have to use the button, so this is big +