The USS Utopia (NCC-2151-01) was an NX-class replica light escort built by the Starfleet Corps of Engineers at the Utopia Planitia Fleet Yards in service in the early 25th century. (STO mission: "Welcome to Earth Spacedock")
When the SCE began to revise new and existing starship classes to be modular, the engineers constructed a replica of the centuries old NX-class spaceframe. Outwardly, the Utopia resembled 2150s NX-class vessels but was equipped with state-of-the-art technology. As a nod towards history, the NX-class replica was fitted with a grappler.