well from my experience to have HID keyboard and HID mouse in device manager is normal, the key is in the Devices & Printers does it show the correct device names, if so then totally normal. I have the Razor deathadder and a Logitech keyboard that both do the same without any issues, as they are named correctly in the D&P screen. If the media buttons are not working it may just be an issue of compatibility to get the W7 driver working... but I hopefully another member here has that model to confirm the issue or not.