SteelSeries Engine 3 Driver/Utility 3.6.6 Feb 22, 2016
... Added support for the Rival 100 Dota 2 mouse New Firmware: - New Rival 300 firmware that ... layout for MSI GT72 laptops Compatible Devices: - SteelSeries Rival 300 Fallout 4 Mouse - SteelSeries Rival 300 Mouse - SteelSeries Guild Wars 2 Gaming Mouse - SteelSeries Kinzu v3 Mouse - ...