My iMac does not recognize or see an external drive.

Ref.: External USB M-DISC DVD+-RW CD RW Burner Writer Drive For Apple MacBook Air Pro iMac
made by YunSen Tech.
My iMac, Mac (27-inch, Late 2013), I bought in August 2014. Its SN is: C02MT0YWF8J4/OS X Yosemite. Version 10.10.1
Could you please help me with the installation of the reference external drive. Supplier gives instruction for Windows only. When I follow the window instruction on my iMac, the system does not recognize or see the drive. When I use Apple>About this Mac>System Reports>Hardware>USB, I think the following info describes the Drive, is it?:
External:
Product ID: 0x0840
Vendor ID: 0x13fd (Initio Corporation)
Version: 1.14
Serial Number: 313037383530384C31312020
Speed: Up to 480 Mb/sec
Manufacturer: Generic
Location ID: 0x14500000 / 1
Current Available (mA): 500
Current Required (mA): 2
I would greatly appreciate some help.
Thank you in advance.

The problem is NOT the fact that it is a USB 3.0 drive, as USB 3.0 is backwards compatible with USB 2.0. The problem is specific to Toshiba Canvio portable drives. They only work if you use a micro-USB2 cable instead of the included USB 3.0 cable. This problem does NOT affect other USB 3.0 portable drives (Seagate, Western Digital, etc.), and they work fine with USB 3.0 cables.
Once again, you need a micro-USB2 cable for the Toshiba to mount.

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