Greetech and Kaihua partnered with Razer to produce custom switches. The exact timeline of those partnerships is not known, but Greetech appears to be their current vendor.
Razer Orange switches have a rather large tactile event. Their force curve is, surprisingly, closer to Zealio Purple than any other tactile model we have tested. The tactility is sharper and aligned near the beginning of the keypress, which seems to reduce its impact during rapid typing.
Our switch inspection indicates that Razer may have asked Kaihua to use cheaper materials as a cost cutting measure, but this has not been verified by a third party.
Razer Orange Mechanical Switches info 2017-05-20T15:34:46+00:00