What is The Medeco X4 Core?

The Medeco X4 is a small format interchangeable core (SFIC) that fits Best-style, Prox, and iClass hardware. It installs in existing systems without replacing the surrounding hardware, which cuts down on labor time and client costs.

[Core Features]
The X4 is ideal for large facilities—hospitals, universities, & corporate campuses—this means building-level masters, department-specific submasters, and individual user keys all able to operate under one system instead of requiring multiple overlapping key hierarchies.
The core works across different cylinder formats. A facility running SFIC in office doors, mortise cylinders at building entrances, and rim cylinders on utility rooms can key all three types to the same master. Facility managers carry fewer keys. Locksmiths track one system instead of three.

[Key Benefits]
X4 cores drop into current SFIC installations and can be masterkeyed with Medeco cylinders already in use. Facilities don't need to rip out existing hardware or commit to full system replacement. They can swap cores during regular maintenance or add them as new doors come online.
The quick-change design matters during key control emergencies. When keys go missing or employees leave, locksmiths swap the core in seconds rather than disassembling locksets. For service businesses billing hourly, this affects how many calls they can handle per day.

The X4 also works with Prox and iClass credential systems, so facilities running electronic access control can use the same mechanical cores throughout their buildings.

X4 compatibility opens up facilities already running partial Medeco systems.
View available formats and wholesale pricing.