Keep low-voltage equipment running on the output your installation requires. The Altronix AL400ULXB2 board power supply provides selectable 12 VDC at 4 A or 24 VDC at 3 A, giving integrators flexibility across access control, security, and related DC-powered systems. This board-level design is suited for clean enclosure integration where space, serviceability, and reliable power delivery matter. The UL recognized construction supports professional installations that call for a documented, code-conscious component rather than a generic adapter. For projects where power stability affects uptime, device behavior, and downstream reliability, this model offers a more disciplined fit than lower-grade alternatives. Choose it when the system design calls for a dedicated supply with defined DC output options and a form factor intended for permanent installation. It is a practical choice for teams that value predictable electrical performance and a component set aligned to commercial security infrastructure.