A USB stick capable of storing data for 200 years. With just 8 KB of memory, the Blaustahl Storage Device by Machdyne it may seem like a gadget that is not too useful, but in reality it hides a specific niche of use. It is in fact perfect for storing passwords, cryptocurrency keys, notes and data for geocaching. In fact, it can contain approximately 8,000 characters, equal to 4 pages of text. With the upcoming firmware update, cryptographic features will be integrated to further improve data security.
FRAM memory
But what makes this USB-A stick different from others? Well, Blaustahl’s secret lies in his FRAM memory (Ferroelectric Random Access Memory), known for low power consumption, writing speed and impressive resistance to read and write cycles (almost one million billion cycles), which uses a ferroelectric material to store data. This makes it much more reliable than common EEPROM and NOR flash memories, although the cost is higher. At temperatures of 85°C it can store data for 10 years, at 55°C for 95 years, and if stored at a maximum of 35°C it can last for over 200 years. For comparison, NAND Flash should last between 16 and 20 years at 55°C.
Blaustahl Technical Characteristics
- Capacity: 8KB
- FRAM memory: Lifetime up to 200 years at 35°C
- Microcontroller: Raspberry Pi RP2040
- NOR Flash Memory: 4MB for firmware
- Compatibility: USB-A port that requires no additional drivers
- Text Editor: Built-in for easy data management
The management of the flash drive’s FRAM is entrusted to a micro controller Raspberry Pi RP2040 paired with a 4MB NOR Flash for the firmware. It also includes a text editor which can be accessed – once connected to a USB port – via programs that support an emulation of the VT100 video terminal (such as PuTTY, Tera Term or Minicom). To overcome compatibility problems and controller tightness, the FRAM, in extreme cases, could be desoldered and integrated into other data transmission standards and protocols.
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