Looking at the control panel on the 3D Mercury you can see that it offers a number of options and connections. From left to right we have the (Power Button) which has a slight recess to it so there will be no problems of accidentally turning the machine on or off. The same thing can be said about the (Rest Button) which is located directly above it.
Next to it you will find the (Hard Drive Activity LED and the Power LED). The next control is the one you will more than likely play with the most, this is the one that controls the speed of the fan and limits or increases the noise the fan makes on the unit, ranging from near silent operation all the way up to overclocking settings. The fan has speeds that range 1000 to 2600 rpm.
Up next is the flow indicator, which lets us know that the water is circulating inside our system and insuring we don't have a large air bubble tramped inside our lines. We the have a total of four USB connector from which to chose from. Then the typical headphone and microphone connections followed by the single FireWire connector. Overall Gigabyte has made sure to cover all the bases and I think they have done a tremendous job of doing do on this product.
Located on the top of the 3D Mercury is the fill hole for the water cooling system, by simply removing the screw-in plug you are presented with an 1.25" opening where you can add your water and water conditioner.
Located on each side of the top portion of the case you will find louvers cut into the side of the metal which will allow additional air to not only escape but to pass through into the radiator of the system in an effort to keep things as cool as physically possible.
