MITRON Duplus HDD Selector Review

Modding/Small Mods by jmke @ 2008-04-12

This small device from Mitron allows you to switch between two different hard drives. Can be useful in some situations where you don\'t want one OS to see the other system. Also for family PC with one disk for the business and one for pleasure with no risk of virus infection from one to another. Lets take a closer look at this nifty product which fits in 3.5inch bay.

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Introduction & Specs


Mitron is a Taiwanese based company which is mainly focused on providing a wide variety of PC accessories for storage, cooling, noise, lightening, casemodding.

We got a chance to test their latest addition, a compact 3.5” bay device which allows you to hook up two hard drives and have completely separate dual OS boot option.

Madshrimps (c)

Mitron Duplus DUP-35 is a hardware solution that allows a user to switch between two bootable drives with ease. With the Duplus DUP-35, a user can use multiple drives to achieve a multi-O/S system or multi-user with the added safety of isolating the O/S from each other. Sophisticated user can make their PC a true multi-boot system by having one bootable drive installed with Windows O/S while another drive installed with another O/S, Linux for example. Duplus DUP-35 also allows two users sharing a same PC to boot from their own hard drive completely isolates from each other so if a drive is infected with virus, another drive will still boot.

The Duplus is not a very complicated device, but does have a nice list of useful features which will make it easier to use:


  • Separate two bootable drives isolating HDD from each other prevents virus infection from one HDD to another
  • Easy installation and straight forward operation
  • Three modes operation with LEDs indication – boot from A, boot from B, user selectable boot A+B
  • The A+B mode allows two HDD to be power on making file sharing possible between two HDD
  • MCU controlled preventing a user to accidentally shut down the hard drive in use while the system is power on. To select another bootable HDD, the system needs to be powered off for the change to take effect.
  • Convert 4 pin Molex 12V & 5V input from PSU to 12V, 5V & 3.3V output for SATA HDDs


    We received the unit outside its retail packaging, so no fancy box shot here; the current contents of the Duplus DUP-35 are:

    Madshrimps (c)

  • Duplus DUP-35 3.5” Bay Device
  • Y-Split power cable with 4-pin power connector and SATA power connector
  • Installation manual
  • Mounting screws
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