Cockpit-Simulator 737X CDU (v2) Review: An Essential Component for Flight Sim Enthusiasts

The CS 737X CDU v2 is a 1:1 replica of the Boeing 737 Control Display Unit (CDU), a crucial component in flight simulation setups. This review examines its build quality, its replication of the real 737 CDU, and its integration with Microsoft Flight Simulator 2024.

The CDU serves as the primary interface for pilots to interact with the aircraft's Flight Management System (FMS), handling navigation, performance, and fuel calculations. It features a display screen with six line select keys for selecting and entering information, a dedicated function keys for tasks such as performance calculations, and an alphanumeric keypad for entering text.

Unlike other consumer-grade CDUs, the CS 737X CDU v2 employs a full-metal, CNC-machined aluminum shell and silicone rubber buttons, closely replicating the real unit's feel. The display uses a standard commercial cover, which introduces some glare, but the visual presentation closely matches the real 737 CDU. The unit also includes a handle for maintenance and an included desktop stand for easy placement.

During testing in Microsoft Flight Simulator 2024 using the PMDG 737-800, the CS 737X CDU v2 showed excellent input latency, with key presses reflected almost instantly on both the unit's display and the virtual CDU within the simulator. This synchronization made the unit feel effectively synchronized with the flight, enhancing overall immersion. The physical CDU also allowed for faster and more intuitive interaction with the FMS, especially when handling direct-to instructions from ATC.