The Oculus Rift S virtual reality headset will go on sale May 21 in the Microsoft Store for $399.
A page in the Microsoft Store listed the VR headset as available for preorder Tuesday, then listed it as out of stock. And then the page became "unavailable."
Neither Oculus nor Microsoft immediately responded to a request for comment. It's possible more information will be revealed at Facebook's , which starts Tuesday.
Facebook announced theat the Game Developers Conference in San Francisco in March. The headset adds self-contained tracking, a higher-res display and a new design to the original PC-connected Oculus Rift headset. The company also introduced the , a new standalone, self-contained mobile VR system.
Originally published April 30 at 7:36 a.m. PT.
Update, 7:45 a.m.: Added details on Oculus Rift S. Update, 8:10 a.m.: Added that Microsoft Store link is no longer working.