Industrial-Grade
Cold Storage
Marcel Hormann delivers unyielding physical hardware for offline data and private key retention. Purely air-gapped. Completely isolated from the digital grid. No software intermediaries.
The Philosophy of Absolute Isolation
In an era defined by constant connectivity, true security is found in disconnection. KOSTIANTYN ZABUN KG founded the Marcel Hormann hardware line on a singular, uncompromising principle: if it touches the internet, it is compromised.
Unlike software applications or hot interfaces, our physical hardware devices act as a terminal endpoint for your cryptographic data. The concept of an "Air-Gap" means there is a literal, physical space between your sensitive data and the outside world. No Bluetooth modules, no NFC chips, and no Wi-Fi capabilities are ever soldered onto our logic boards.
Strictly Hardware, Zero Finance: It is crucial to understand that we are a manufacturing entity. We provide the physical vault. We do not provide the contents, nor do we offer avenues to trade, swap, or invest. The hardware is a neutral, inert object until the user physically interacts with it.
Hardware Architecture
Engineered for resilience. Manufactured by KOSTIANTYN ZABUN KG.
Offline Core
The microcontroller generates entropy purely locally. The device cannot connect to external networks under any circumstances.
Physical Prompts
Data extraction or signature confirmation requires a physical, tactile button press on the hardware chassis.
No APIs
Firmware is stripped of any third-party financial integrations. No built-in swapping, buying, or selling capabilities.
Frequently Asked Questions
Can I trade assets directly on the device?
No. Marcel Hormann hardware does not feature any trading, exchange, or financial software. It is a physical data retention tool designed solely for holding private keys offline.
Who manufactures these devices?
All hardware is designed, manufactured, and distributed by KOSTIANTYN ZABUN KG, operating out of our logistics center in London.
Does the device require internet to setup?
Absolutely not. The initialization process happens locally via the physical screen and buttons. We advocate for a 100% air-gapped setup procedure.