ACS POCKETKEY FIDO® Certified USB-A Security Key U2F

ACS FIDO PocketKey U2F Security Key

POCKETKEY is a FIDO®-certified security key designed for passwordless authentication and MFA deployments in personal, corporate, and public-sector environments. The device supports FIDO U2F and FIDO2 (CTAP2.1 / WebAuthn) protocols, providing an authentication model based on asymmetric keys—each service receives a unique public key, while the private key remains securely stored on the device. This significantly reduces the risk of phishing and credential compromise.

The key communicates via the standard USB Type-A interface (USB 2.0 Full Speed) and features a mechanical button to confirm user presence— a simple, standards-compliant solution for user-presence verification. An integrated LED indicates operation status.

POCKETKEY uses elliptic curve cryptography (ECC p256) and delivers a security model resistant to replay attacks and user tracking by generating unique keys per service. The device meets certifications and compliance requirements for commercial use, including FIDO L1, CE, FCC, UKCA, RoHS, and REACH.

Compatibility: Windows, Linux, macOS, Android (and iOS via NFC in other variants), as well as all major browsers: Chrome, Safari, Microsoft Edge, and Firefox. Works out of the box with services that support FIDO.

Technical specifications

• Model: AFD01-A1 (PocketKey)

• Interface: USB Type-A (USB 2.0 Full Speed)

• Protocols: FIDO U2F, FIDO2 (CTAP2.1)

• Cryptography: ECC p256

• Peripherals: Mechanical user-presence button, LED

• Certifications: FIDO L1, CE, FCC, UKCA, RoHS, REACH

• Dimensions: approx. 29 × 14.5 × 10.5 mm

• Weight: approx. 4.4 g