UNSC Razor's Edge

The UNSC Razor's Edge was a Prowler of the United Nations Space Command. It was part of the Battle of New Harmony in 2537. During the battle, they managed to attach a telemetry probe to a retreating Covenant Frigate. They then followed the Frigate through Slipspace and discovered K7-49.

Its eventual fate is unknown.

Trivia
The band AC/DC released an album in 1990 entitled "Razor's Edge". It is possible that the UNSC Razor's Edge was named in tribute to this album.