I have purchased one, so you can use my referral link to purchase:
https://keybox.magicw.net/index.html?id=125824
Technical Details
Mnemonic and path specification
The wallet supports the following industry factual standards:
[BIP39]
https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki
A mnemonic dictionary for various languages, a mnemonic generation algorithm, and how to generate seed information through mnemonics.
[BIP32]
https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
Algorithm for generating multiple key pairs by seed information hierarchical deterministic.
[BIP44]
https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki
Bitcoin wallet path specification (non-isolated witness address), compatible with many other currencies (POW series).
[BIP49]
https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki
Bitcoin wallet path specification (isolated witness address), compatible with many other currencies (POW series).
[SLIP48]
https://github.com/satoshilabs/slips/blob/master/slip-0048.md
Path specification for graphene series blockchains (eg BitShares, Steemit, YOYOW, EOS)
Simple open
The hardware wallet itself acts as a signature agent, and the underlying signature parts of different blockchains are uniformly processed; no advanced semantics are included.
The hardware wallet is signed by the collaborative wallet software to generate the hash to be signed.
Therefore, as long as they are the same signature algorithm, different blockchain community developers can integrate the Keybox themselves through an open interface.
github：https://github.com/KeyboxWallet