Yes, you will be able to use the SM1 keyboard with either Windows or Mac devices.  

Out of the box

The keyboard is physically set up for Mac devices with their specific keys, but we have included three extra key caps:

1 WIN key

2 ALT keys

This is so you could swap for a more Windows specific set up. 

How to swap between Mac and Windows modes

The SM1 keyboard is Mac enabled out of the box and depending on the host device you're using, you can swap between Mac and Windows modes, so you could use their specific key binds. 

O Key - Mac  

P Key - Windows 

1. While holding down the fn key, press either the O or P key to swap between Mac or Windows mode. 

2. After pressing the key combination, you could let go of the key combination, which the corresponding key would flash indicating the switch and would stop flashing once it swaps to the desired mode.