Inside the EXO 1
There are a pair of screws under the back foot that allows this mouse to come apart. Those brave enough to go this far, be mindful of the short ribbon cable that attaches the top red PCB to the green one found in the base of the mouse.
Removing the top PCB, we find the opposite side is more of a tan color, and in this image we have the pair of YSA branded red switches that back the page forward and page back buttons. These require medium pressure to be used, and offer just the lightest of clicks when pressed.
We have seen switches with the cursive D as the brand marker before, but never a yellow switch version. This switch is very soft, and again is near silent, but an audible click is still there, and it backs the LED selector switch. The LED here is also changes color to denote which of the four selections is currently selected.
While we have seen Huano switches before, again the green version is new to us. The switch shown here is under the left click button, requires more force than many other switches, as well as offering a very audible click with every press.
On top of the eye of the mouse, we find the Pixart Imaging PMW3320DB-TYDU. This sensor is of course optical in nature, and peaks at 3500 DPI.
To take care of the talking between the EXO 1 and the PC, as well as offering the ROM space to offer the functionality it has, AZIO chose this 8-bit OTP MCU, the Holtek HT82F553.
To add a bit of weight and stability to this mouse, AZIO chose a permanent weighting system with this pair of steel plates screwed into the heel of the mouse. Without these, the EXO 1 would be about half the weight it is now.
Matching the yellow switch we found on the upper PCB for the DPI button, we find another under the scroll wheel too. To give the right click button the same feel as the left, we see that a matching green Huano switch is where it should be.
With the mouse back together and powered up, we can see that the DPI selector LED is now purple, or that it is currently offering 2750 DPI. The AZIO logo is also backlit now, but get the full effect you do need to be more straight on with it to get a good illumination.
As we spin the EXO 1 around to the front, it is easy to see the white LED behind the scroll wheel, as the plastic center glows well. We also have the DPI changed once again and the indicator is now green, or set to 1250 DPI. When 2000 DPI is selected the light is blue, and when 3500 DPI is in use, the light is then red.
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