HID OMNIKEY 3121 Smart Card Reader Contact, USB 2.0, TAA Compliant, USB Type A, 59.1in Cable, Dual-Color LED

The HID Omnikey 3121 Card Reader is a professional USB smart card reader designed for secure authentication, identity verification and transaction workflows in enterprise, government and financial environments. Engineered for desktop use with a stable standing or weighted base and robust ABS housing, the reader supports contact smart cards (PKI, PIV/CAC, eID and enterprise access) and common industry standards to simplify integration. With plug-and-play USB CCID connectivity, clear dual-color status LED feedback, and a range of variant options for cable length, firmware and mounting accessories, the OMNIKEY 3121 delivers dependable, standards-based performance for single sign-on, digital signatures and secure access control deployments.

Key Features

• Standards-based compatibility: Supports ISO 7816, EMV, PC/SC and CCID to ensure broad interoperability with card ecosystems and secure workflows.
• Desktop-ready design: Stable desktop/standing-base form factor with weighted or jumbo base options and robust ABS housing for reliable card seating in high-use workstations.
• Plug-and-play USB connectivity: USB CCID / USB 2.0 host interface and included USB cable simplify deployment without additional drivers in most environments.
• Clear user feedback: Dual-color status LED provides immediate visual confirmation of card activity and reader status.
• Durable, serviceable build: High insertion durability (100,000 insertions; 200,000 with landing contacts) and long MTBF for sustained operations.

Specifications

• Brand: HID
• Product Name: HID Omnikey 3121 Card Reader
• Device Type: USB Smart Card Reader
• Form Factor: Desktop / standing base
• Interface / Connection: USB CCID (USB 2.0)
• USB Version: USB 2.0 (Full Speed, 12 Mbps)
• Card Compatibility: Contact smart cards (PKI, PIV/CAC, eID, enterprise access)
• Standards Supported: ISO 7816, EMV (EMV2 2000 Level 1), PC/SC, CCID
• Supported Protocols: T=0, T=1; synchronous and asynchronous protocols (varies by variant)
• Smart Card Interface Speed: 420 kbps
• Smart Card Clock Frequency: up to 12 MHz (varies by variant)
• Supported Card Voltages: 5V, 3V, 1.8V (ISO 7816 Class A/B/C)
• Power Supply: Bus powered (USB)
• Dimensions: 3.15 x 2.64 x 1.1 in
• Weight (Reader Only): 3.88 oz
• Cable Length: 59.1 in / 70.9 in (depending on variant)
• Firmware Version: FW2.04 (available on select variants)
• Status Indicator (LED): Dual-color LED (green & red)
• Durability: 100,000 insertions (200,000 with landing contacts)
• MTBF: 500,000 hours
• Housing / Composition: ABS plastics
• Compliance / Certifications: TAA, RoHS, Microsoft WHQL, GSA FIPS 201 (varies by variant)
• Supported APIs / Drivers: PC/SC (additional platform support across Windows, Linux, Mac OS X and Android depending on variant)