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Corsair M55 RGB PRO Ambidextrous Gaming Mouse Review (Page 4)

Chad Sebring | Jun 13, 2019 at 08:00 am CDT - 2 mins, 15 secs reading time for this page
Rating: 96%Manufacturer: Corsair

Inside the M55 RGB PRO

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All three of the feet need to be removed to open the M55 RGB PRO, as they expose the four screws holding it together. The top portion of the mouse holds a PCB with switches for five of the secondary buttons, which connects to the main PCB with a cable. The lower section is where most of the magic happens, and while many will never see it, we do like the look of the black PCBs used as well.

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The PCB has been removed from the top section of the M55 RGB PRO to show what used switch wise is. For the DPI selector as well as the four side buttons, they are all backed with white CF switches. These require a fair bit of force to actuate, but are crisp, and the report is easily heard once depressed.

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Under the left main button of the mouse, we find a blue Omron switch with the D2FC-F-K(50M) model number painted on it. These are lighter to actuate than the secondary switches, and the report from use is quieter. As for the scroll wheel switch, Corsair uses another CF switch to record rotation of the wheel.

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In control of the tracking of movement, Corsair opted for a PixArt sensor, an optical one. We can see that the sensor chosen is the PAW3327DB, and from what we gathered from the specification earlier, it has quite a large DPI range to keep anyone happy using the M55 RGB PRO.

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While Corsair covered the MCU with a sticker showing a QR-code, we peeled it to see what is under the hood, we find the NXP Semiconductors LPC11U68J. This ARM Cortex-MO based processor is 32-bit, runs at 50MHz, which is plenty of grunt to control what the M55 RGB PRO has to offer.

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As we finish our way around the interior, we find a match to the previous Omron under the left button, used for the right button as well. Fifty million clicks is a lot, and should enable the M55 RGB PRO to have along lifespan for those who decide to buy one.

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Once we reinstalled the screws and put the feet pack onto the mouse, we plugged it in to see how she looks. The default mode for the Corsair logo has colors shifting through the rainbow, but as to the white LED in front of the DPI indicator button, it does not change unless the DPI is adjusted. Even then it will stay a static color so that one can easily tell what the current DPI is.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Chad Sebring


After a year of gaming, Chad caught the OC bug. With overclocking comes the need for better cooling, and Chad has had many air and water setups. With a few years of abusing computer parts, he decided to take his chances and try to get a review job. As an avid overclocker, Chad is always looking for the next leg up in RAM, cooling, as well as peripherals.

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