Klein 4 is redefining data security at the physical layer, protecting the most valuable asset of every SME.
Security from First Principles
Next-Generation NAS
Our Best Solution for your Company
News
17.02.2026: Pilot Series Now Open
Applications are currently being accepted for the initial deployment phase.
Hardware-Enforced Security
We control information flow at the physical layer.
Data diodes.
Multiplexers.
Isolated control.
No virtual seperation.
No software assumptions.
No compromise dependency.
K4 Next-Generation NAS
Our Solution for enterprise-grade Data Loss Prevention for SMEs.
Automated cold backups.
Innovative air-gap mechanism.
Guaranteed Business Continuity.
Customer - Partner - Supporter
