Product weight: 95g / 0.21lbs without cable, 132g / 0.29lbs with cable
PC / Mac with USB port
Windows® 8/ Windows® 7 / Windows Vista® / Windows® XP (32-bit)/ Mac OS X (v10.7-10.9)
100MB of free hard disk space
Razer Synapse 2.0 registration (requiring a valid e-mail), software download, license acceptance, and internet connection needed to activate full features of product and for software updates. After activation, full features are available in optional offline mode.