The Baymaster S looks just like a floppy drive in terms of size and shape, with the exception that the front bezel of the device is littered with the card reader’s slots and the 2.5” drive tray occupies the rest. There are two activity LEDs, one for the card reader (which can be accessing more than one card simultaneously) and one for the 2.5” drive.
At the rear of the Baymaster S there are three cables which need to be installed in order to access all of the product’s features. The most interesting thing about the cables is the power cable, which is not a standard Molex cable but a SATA power cable. Then there is a USB 2.0 header which must be attached to a free USB header of your motherboard in order for the card reader to operate and the USB 3.0 cable which must be inserted in a USB 3.0 port in order for the 2.5” drive bay to operate; and unfortunately you need to run this cable outside your case from any hole possible at the rear of the case (or by removing a PCI slot cover) in order to use a USB 3.0 port. You can also use a USB 2.0 port however it will severely limit the performance of the device.