If an electronic hardware wallet is connected to a computer that is infected with a virus or malware, the private keys on the hardware wallet could be compromised and the crypto stored on it stolen. Since we cannot guarantee the security of every users’ computer, we designed a non-electronic cryptocurrency hardware wallet to completely avoid the risk. Instead of relying on USB cables, Bluetooth, NFC, or other type of electronic connection to communicate between the offline hardware wallet and the online computer, REAL Cold storage utilize a system of visual QR codes.
Another problem with cables is that they degrade over time and eventually lose the ability to transfer data effectively. Bending and flexing of the cable can cause the internal wires to break or become damaged. The connectors on the end of cables can become worn out and stop working.