Thank You For Downloading SteelSeries Engine 3 Driver/Utility 3.6.6

New Devices: - Added support for the MSI GS60 laptop - Added support for the MSI GS70 and GS72 laptops - Added support for the Rival 100 Dota 2 mouse New Firmware: - New Rival 300 firmware that fixes an issue with scroll wheel detection, most notably in CS:GO - New Siberia Elite, Elite Prism, and ...