The Dell 450-BFNJ is a compact GaN AC power adapter for supplying compatible Dell systems. It delivers 360 W and uses a 7.4 mm output connector. Dell identifies the manufacturer part as 625VK.
This European version has a listed 1 m cable. At 189 mm high, 86 mm wide and 25 mm deep, with an approximate weight of 1 kg, its dimensions can help you check whether it fits your setup.
Dell lists compatibility with Alienware 16 Area-51 AA16250, Alienware 18 Area-51 AA18250, Alienware m16 R1 (AMD), Alienware M16 R2, Alienware m18 R1 (AMD), Alienware M18 R2 and Alienware x16 R2.
Box contents: 360 W power adapter.