Here there are some data on the camera. The vendor website and product page with technical specifications
are here: http://www.magzero.it/MZ5m.html . Unfortunately, they are only in italian, so I translated them.
    Sensor: Micron MT9M001 monocrhomatic
    Resolution: 1280x1024
    Pixels dimension: 5.2 x 5.2 micron
    A/D converter: ADC: 10 bit, output: 8 bit
    Max exposure time: 60 sec.
    Electronic shutter (??? they probably intended "there is no mechanical shutter" ???) 
    Quantic efficiency: up to 56%
    USB connectivity: USB2
    Frame rate: up to 10 fps @1280x1024 / up to 50 fps @160x120
    Power: via USB
    Cooling: no
    Autoguide port: Integrated, ST4
    UV/IR-Cut filter: no
    Dimensions: diameter 64mm, depth 32mm
    Weight: 105 gr.
    System requirements: Windows XP / Vista / Windows 7 (32 e 64 bit)

They say that the sensor is a Micron MT9M001 mono, as the one in the popular Orion Starshoot autoguider:
in fact both these cameras seem to be rebranded versions of a QHY5 camera (not the QHY5V  and neither
QHY5T nor QHY5-II, just QHY5): http://www.qhyccd.com/en/left/page3-1-2-1/qhy5-series-1-2-1/. Windows
drivers can be obtained on http://www.qhyccd.com/en/top/download/ , in the "QHY5"  subsection. Three
drivers are necessary to get the camera work properly as an autoguider:
  - the camera driver (http://qhyccd.com/file/repository/Driver/QHY5Drv64V13-08-13.zip)
  - an update to it (http://qhyccd.com/file/repository/QHY5/QHY5UPDATE.zip)
  - the binding to the ASCOM interface (http://qhyccd.com/file/repository/ASCOM/QHY5ASCOM-V40.zip). 

Another set of drivers are available on the vendor website:
  - http://www.magzero.it/downloads/files/MagZero_MZ-5_update_4.zip
These look like a previous version of the ones on the QHY site; the subframe problem is present also with
them.

The vendor claims that the camera supports binning. This doesn't to be true for the ASCOM driver,
since there is no option to enable it. Thus in the tests I made, the binning was disabled and the full
frame was at the maximum resolution.

More info:

Output of "dmesg" under a linux system with libqhy installed:
  [11182.180300] usb 1-2: new high-speed USB device number 13 using xhci_hcd
  [11182.308559] usb 1-2: New USB device found, idVendor=1618, idProduct=0901
  [11182.308561] usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
  [11182.316063] usb 1-2: USB disconnect, device number 13
  [11184.073478] usb 1-2: new high-speed USB device number 14 using xhci_hcd
  [11184.201896] usb 1-2: config 1 interface 0 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 64
  [11184.202191] usb 1-2: New USB device found, idVendor=16c0, idProduct=296d
  [11184.202193] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
  [11184.202195] usb 1-2: Product: QHY5-CMOS
  [11184.202196] usb 1-2: Manufacturer: QHY_CAMS
  
Output of "lsusb -v" under a linux system with libqhy installed:
  Bus 001 Device 012: ID 16c0:296d Van Ooijen Technische Informatica 
  Device Descriptor:
    bLength                18
    bDescriptorType         1
    bcdUSB               2.00
    bDeviceClass            0 (Defined at Interface level)
    bDeviceSubClass         0 
    bDeviceProtocol         0 
    bMaxPacketSize0        64
    idVendor           0x16c0 Van Ooijen Technische Informatica
    idProduct          0x296d 
    bcdDevice           d0.00
    iManufacturer           1 QHY_CAMS
    iProduct                2 QHY5-CMOS
    iSerial                 0 
    bNumConfigurations      1
    Configuration Descriptor:
      bLength                 9
      bDescriptorType         2
      wTotalLength           32
      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       255 Vendor Specific Class
        bInterfaceSubClass      0 
        bInterfaceProtocol      0 
        iInterface              0 
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x01  EP 1 OUT
          bmAttributes            2
            Transfer Type            Bulk
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0040  1x 64 bytes
          bInterval               0
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x82  EP 2 IN
          bmAttributes            2
            Transfer Type            Bulk
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0200  1x 512 bytes
          bInterval               0
  Device Qualifier (for other device speed):
    bLength                10
    bDescriptorType         6
    bcdUSB               2.00
    bDeviceClass            0 (Defined at Interface level)
    bDeviceSubClass         0 
    bDeviceProtocol         0 
    bMaxPacketSize0        64
    bNumConfigurations      1
  Device Status:     0x0000
    (Bus Powered)

This is the output of the tool HWinfo on Windows 7 Professional 64bit:

  Device Information                                                              
  Device Manufacturer:                                                            N/A
  Product Name:                                                                   N/A
  Serial Number:                                                                  N/A
  USB Version Supported:                                                          2.00
  USB Device Speed:                                                               USB 2.0 High-speed
  Driver Description:                                                             QHY5 Driver
  Hardware ID:                                                                    USB\VID_1618&PID_0901

  Driver Information                                                              
  Driver Manufacturer:                                                            QHY CCD
  Driver Description:                                                             QHY5 Driver
  Driver Provider:                                                                QHY CCD
  Driver Version:                                                                 2.2.0.0
  Driver Date:                                                                    30-May-2013
  DeviceInstanceId                                                                USB\VID_1618&PID_0901\5&269F9A9D&0&2