These 
days there are a ton of accessories you can buy for your case, and drive bay utilities are certainly 
gaining a lot of popularity amongst the modder and Lan gamer communities.
With a retail 
price of $53 CDN ($40 US), the CoolerMaster Musketeer features three back-illuminated analog meters that give 
it a slightly retro look. The analog meters monitor a couple system variables, and the 
two adjacent sliders allow you to fine tune fan speed and volume. 
           
The first analog display and slider has the ability to control one case fan's 
voltage. Obviously at minimum voltage (0 volts) the fan stops functioning altogether, and at maximum volts the 
fan will operate at full speed.
   The second  analog display and slider, controls audio properties when the Musketeer is plugged 
into an audio jack (it loops the audio signal from the jack in the back, through the meter, and then back to a PCI slot 
cover audio jack). 
 The "VU Meter" 
looks       
                  
    kind of cool, as the meter swings back and forth to whatever music is 
playing. The slider allows you to raise or lower the volume, and works quite well. 
You'll need to use the included PCI expansion bracket slot in order for the Musketeer to work with the audio feature as 
mentioned above.
 The "VU Meter" 
looks       
                  
    kind of cool, as the meter swings back and forth to whatever music is 
playing. The slider allows you to raise or lower the volume, and works quite well. 
You'll need to use the included PCI expansion bracket slot in order for the Musketeer to work with the audio feature as 
mentioned above. 
The third analog display illustrates the temperature of any given device thanks to a 
flat thermistor that can be placed pretty much anywhere in the case. Temperature 
readings are in both Farenheit and Celsius, and the meter has a 
pretty good range from 20 degrees Celsius, through to 80 degrees.
 Installation and setup of the Musketeer is very simple 
and straight forward. The device slides into any free 5-1/4" drive bay, and screws in 
like a CD-ROM. The rear of the Musketeer is simple and easy to understand as 
well.
Starting from left to right, the first port is for the 
temperature probe, the next is a molex connector to or actual power to the device, next 
is for audio levels, and lastly there's a three pin fan header. The Musketeer comes with 
an assortment of cables for connecting fans, audio, and power.
When the Musketeer is powered on, all three analog displays glow 
blue and the colour is very nice.
One potential problem that may arise with the Musketeer is that 
it may not fit in all cases with doors. Because the sliders chrome buttons stick 
out, it might not allow case doors to close all the way, and ironically we 
experienced that problem with the WaveMaster. With the Musketeer installed 
properly in any of the drive bays, the WaveMaster case door was always ajar and 
could never be fully closed.