Razer OSVR HDK 2 pre-orders now live - A slightly cheaper VR option
OSVR HDK 2 - Open Source Head-mounted display for OSVR - Newegg.com
Hands-On with Razer's OSVR Hacker Dev Kit - YouTube
Razer - In case you've missed it – OSVR HDK 1.4 is now available on RazerStore and now with direct support for Unreal and Cryengine powered VR experiences – learn more: http://rzr.to/osvr-hdk.