Review: Sandisk Cruzer 32GB

Cheap 32GB Flash drive from Sandisk: SDCZ36-032G.

Speed test:

Maximum read and write speeds are disappointing (lower than in previously tested 4GB Cruzer Blade), but random write speed is decent.

USB descriptors:

Value Valuename
0x12 bLength
0x01 bDescriptorType
0x0200 bcdUSB
0x00 bDeviceClass
0x00 bDeviceSubClass
0x00 bDeviceProtocol
0x40 bMaxPacketSize0 (64 Bytes)
0x0781 idVendor
0x5530 idProduct
0x0103 bcdDevice
0x01 iManufacturer (SanDisk)
0x02 iProduct (Cruzer)
0x03 iSerialNumber (2004210333139B705B93)
0x01 bNumConfigurations
Hex dump:
0x12 0x01 0x00 0x02 0x00 0x00 0x00 0x40 0x81 0x07
0x30 0x55 0x03 0x01 0x01 0x02 0x03 0x01

Device Qualifier Descriptor:
------------------------------

Value Valuename
0x0A bLength
0x06 bDescriptorType
0x0200 bcdUSB
0x00 bDeviceClass
0x00 bDeviceSubClass
0x00 bDeviceProtocol
0x40 bMaxPacketSize0 (64 Bytes)
0x01 bNumConfigurations
0x00 bReserved
Hex dump:
0x0A 0x06 0x00 0x02 0x00 0x00 0x00 0x40 0x01 0x00

Configuration Descriptor:
------------------------------

Value Valuename
0x09 bLength
0x02 bDescriptorType
0x0020 wTotalLength
0x01 bNumInterfaces
0x01 bConfigurationValue
0x00 iConfiguration
0x80 bmAttributes (Bus-powered Device)
0x64 MaxPower (200 mA)
Hex dump:
0x09 0x02 0x20 0x00 0x01 0x01 0x00 0x80 0x64

Interface Descriptor:
------------------------------

Value Valuename
0x09 bLength
0x04 bDescriptorType
0x00 bInterfaceNumber
0x00 bAlternateSetting
0x02 bNumEndPoints
0x08 bInterfaceClass (Mass Storage Device Class)
0x06 bInterfaceSubClass (Transparent SCSI subclass)
0x50 bInterfaceProtocol (Bulk only transport)
0x00 iInterface
Hex dump:
0x09 0x04 0x00 0x00 0x02 0x08 0x06 0x50 0x00

Endpoint Descriptor:
------------------------------

Value Valuename
0x07 bLength
0x05 bDescriptorType
0x81 bEndpointAddress (In-Endpoint)
0x02 bmAttributes
Transfer Type: Bulk-Transfer
Synchronization Type: None
Usage Type: Data
0x0200 wMaxPacketSize (512 Bytes)
0x00 bInterval
Hex dump:
0x07 0x05 0x81 0x02 0x00 0x02 0x00

Endpoint Descriptor:
------------------------------

Value Valuename
0x07 bLength
0x05 bDescriptorType
0x02 bEndpointAddress (Out-Endpoint)
0x02 bmAttributes
Transfer Type: Bulk-Transfer
Synchronization Type: None
Usage Type: Data
0x0200 wMaxPacketSize (512 Bytes)
0x01 bInterval
Hex dump:
0x07 0x05 0x02 0x02 0x00 0x02 0x01

Other Speed Configuration Descriptor:
------------------------------

Value Valuename
0x09 bLength
0x07 bDescriptorType
0x0020 wTotalLength
0x01 bNumInterfaces
0x01 bConfigurationValue
0x00 iConfiguration
0x80 bmAttributes (Bus-powered Device)
0x64 MaxPower (200 mA)
Hex dump:
0x09 0x07 0x20 0x00 0x01 0x01 0x00 0x80 0x64

Interface Descriptor:
------------------------------

Value Valuename
0x09 bLength
0x04 bDescriptorType
0x00 bInterfaceNumber
0x00 bAlternateSetting
0x02 bNumEndPoints
0x08 bInterfaceClass (Mass Storage Device Class)
0x06 bInterfaceSubClass (Transparent SCSI subclass)
0x50 bInterfaceProtocol (Bulk only transport)
0x00 iInterface
Hex dump:
0x09 0x04 0x00 0x00 0x02 0x08 0x06 0x50 0x00

Endpoint Descriptor:
------------------------------

Value Valuename
0x07 bLength
0x05 bDescriptorType
0x81 bEndpointAddress (In-Endpoint)
0x02 bmAttributes
Transfer Type: Bulk-Transfer
Synchronization Type: None
Usage Type: Data
0x0040 wMaxPacketSize (64 Bytes)
0x00 bInterval
Hex dump:
0x07 0x05 0x81 0x02 0x40 0x00 0x00

Endpoint Descriptor:
------------------------------

Value Valuename
0x07 bLength
0x05 bDescriptorType
0x02 bEndpointAddress (Out-Endpoint)
0x02 bmAttributes
Transfer Type: Bulk-Transfer
Synchronization Type: None
Usage Type: Data
0x0040 wMaxPacketSize (64 Bytes)
0x00 bInterval
Hex dump:
0x07 0x05 0x02 0x02 0x40 0x00 0x00

Whole Device Descriptor as hex dump:
0x12, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x81, 0x07,
0x30, 0x55, 0x03, 0x01, 0x01, 0x02, 0x03, 0x01

Whole Device Qualifier Descriptor as hex dump:
0x0A, 0x06, 0x00, 0x02, 0x00, 0x00, 0x00, 0x40, 0x01, 0x00

Whole Configuration Descriptor as hex dump:
0x09, 0x02, 0x20, 0x00, 0x01, 0x01, 0x00, 0x80, 0x64, 0x09,
0x04, 0x00, 0x00, 0x02, 0x08, 0x06, 0x50, 0x00, 0x07, 0x05,
0x81, 0x02, 0x00, 0x02, 0x00, 0x07, 0x05, 0x02, 0x02, 0x00,
0x02, 0x01

Whole Other Speed Configuration Descriptor as hex dump:
0x09, 0x07, 0x20, 0x00, 0x01, 0x01, 0x00, 0x80, 0x64, 0x09,
0x04, 0x00, 0x00, 0x02, 0x08, 0x06, 0x50, 0x00, 0x07, 0x05,
0x81, 0x02, 0x40, 0x00, 0x00, 0x07, 0x05, 0x02, 0x02, 0x40,
0x00, 0x00