The MX480 router is 8 rack units (RU) tall
MX480BASE3-AC: MX480 Base Chassis with Enhanced Midplane, 1 nos. SCB-E, AC Power, Discounted RE
MX480-PREMIUM2-AC: MX480 Premium Chassis Bundle with Midplane. Also includes redundant RE, redundant SCB-E, redundant AC Power
MX480-PREM3-AC: MX480 AC Premium Fully Redundant "Built to Stock" System with dual Switch control board (SCBE), dual RE-S-1800X4-16G, redundant AC Power and Fan trays
MX480-SERVPREM3-AC: MX480 MXaaF Premium Bundle with redundant components, 1xMS-MPC-128G, AC Power, MS-MPC support must be purchased separately in addition to chassis support