Nitrokey · Security key
Nitrokey 3A (No NFC)
USB-A hardware token built on an SE050 secure element certified to Common Criteria EAL 6+, with Rust-based open-source firmware. Consolidates FIDO2, OTP, and OpenPGP/PIV in one tamper-resistant device.
$60
EU equivalent: €48 incl. VAT · nitrokey.comReserve in the one-time Vegas batch — order by July 24, 2026 · 6 PM EDT
Vegas event batch — order by July 24 for Aug 5–6 Wynn pickup or US ship (+$25)
Why the Nitrokey 3A (No NFC)
What this security key does that alternatives don't.
Phishing-resistant authentication
FIDO2/WebAuthn and U2F deliver passwordless login and hardware-bound 2FA that defeats credential phishing and replay attacks.
Hardware-isolated keys
Private keys are generated and held in an SE050 secure element certified to EAL 6+, never exposed to the host OS.
Auditable supply chain
Open-source firmware written in memory-safe Rust with signed updates and OSHwA-registered hardware support verifiable trust for regulated environments.
Specifications
Full technical details.
Compliance framework mapping
Controls this product satisfies across 7 frameworks.
Multi-factor authentication — hardware-bound
Phishing-resistant MFA using hardware security keys. Software TOTP and SMS are explicitly excluded from "phishing-resistant" in NIST 800-63B and most modern framework guidance.
Cryptographic key management
Hardware-bound key generation and storage. Private keys generated and stored inside a certified secure element (EAL 6+) and are non-exportable by design — for login credentials (Nitrokey) and crypto-asset custody (Ledger) alike.
Supply chain risk — hardware and firmware
Open-source firmware is publicly auditable and reproducibly built. EU jurisdiction hardware is not subject to US National Security Letters. Directly addresses hardware supply chain risk in CMMC and NIS2.
Compared to
Honest comparisons against the most likely alternatives.
vs. Nitrokey 3 NFC editions
This USB-A variant omits reliable NFC, so it suits desktop/laptop use where wireless tap authentication on mobile is not required; choose an NFC edition for phone-based logins.
vs. YubiKey 5 Series
Comparable FIDO2/PIV/OpenPGP coverage, but Nitrokey adds fully open-source, Rust-based firmware for independent auditability, whereas YubiKey firmware is closed.
Shipping & returns
What to expect after you order.
Shipping
Ships from our Tennessee 3PL. 2-day FedEx to most US addresses, expedited options at checkout. Signature required. Business day processing — orders placed before 2pm ET ship same day.
Returns & RMA
30-day return window for unopened units. Defective units handled under Nitrokey's 2-year warranty — we manage the US-side RMA so you don't ship to Berlin.
Purchase orders
Net-30 terms available for approved organizations. W-9 on file. Generate a quote from the stack builder or email sales@securitygadgets.shop with your PO requirements.
Authorized reseller
We are an official Nitrokey authorized reseller. Full manufacturer warranty applies. Identical hardware and firmware to buying direct from nitrokey.com — with US inventory and support.
