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OMNIKEY Reader (USB 2.0, EMV CCI Standard Light Standing Base)

Access Control Reader
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HID OMNIKEY 3121 Access Control Reader

The HID OMNIKEY 3121 is a high-performance smart card reader for desktop use with multiple standing options in a robust housing. The OMNIKEY 3121 is an easy-to-install USB device suited for all contact smart card operations like online-banking or digital signature applications.

Full specifications (PDF)

Manufacturer part number: R31210020-01

Technical Information

  • Media Supported: Smart Card
  • Features:
    • Different standing base options available for convenient vertical and horizontal use
    • Shipped with support for adhesion (e.g. to PC monitor)
    • Robust housing and long USB cable
    • High speed data transmission
    • All major operating systems supported

General Information

  • Product Type: Smart Card Reader
  • Brand Name: HID
  • Manufacturer: HID Global Corporation
  • Product Model: 3121
  • Product Name: 3121 Smart Card Reader

Physical Characteristics

  • Height: 1.1"
  • Width: 2.6"
  • Length: 3.1"
  • Weight (Approximate):
    • 3.88 oz Reader only
    • 4.97 oz Reader with base


  • Interfaces: USB 2.0 USB


  • Green Compliant: Yes
  • Green Compliance Certificate/Authority:
    • WEEE
    • RoHS