Built in Hong Kong. A standard for the next decade.
ChinaBridge was founded by Li Qinming, who wanted a hardware wallet he could audit, document, and defend without caveats. That is still the only product we make.
Security-first, from day one.
Li Qinming founded Dollar Media Technology Limited in Hong Kong with a clear conviction: the existing generation of hardware wallets was not built for the people who actually needed them. He set out to build a security-first digital asset protection device under the ChinaBridge brand that anyone could audit, document, and trust without caveats.
The company shipped the first ChinaBridge Vault and has since expanded the range to three devices. Dollar Media Technology Limited is privately held, based in Hong Kong, and focused on one product category. We have no plans to sell software wallets, launch a token, or operate an exchange. We make hardware.
What we're for.
To make self-custody something a careful person can get right on the first try — and a sceptical person can verify with public evidence.
Verifiable, not trusted
Open-source firmware. Published audits. Documented certifications. If you don't take our word for anything, you should still be able to reach the same conclusions we do.
Hardware-only
We sell devices. We don't run an exchange, offer custody, operate a bridge, or issue a token. Our incentives are aligned with durability, not with your trading volume.
Calm by design
No hype, no FOMO, no flashing banners. A hardware wallet is a serious instrument. We design, write, and support it that way.
Kam Fone Mansion, 16 Kam Fong Street, Hong Kong.
We're based in Mong Kok, Kowloon. Our design, firmware, compliance, and support teams work together in a secure facility. Assembly is conducted under ESD-controlled conditions, and any certifying auditor is welcome to inspect.
Dollar Media Technology LimitedKam Fone Mansion, 16 Kam Fong Street
Mong Kok, Kowloon, Hong Kong
+852 5803 1288
Who builds this.
Dollar Media Technology Limited employees across engineering, design, compliance, and support. No contractors handle firmware, keys, or customer data.
Private investors.
Dollar Media Technology Limited is backed by private investors. Cap table held closely; no tokenized equity, no secondary-market exits outside standard private-company mechanics.
Come build the next decade's hardware wallet.
We hire slowly and keep the team small. If you want to work on instruments people rely on — and not a growth-at-all-costs product — we'd like to hear from you.
Send a short email and a CV to [email protected]. No cover letter theatrics required — tell us what you've shipped.