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Compact black RFID reader OMNIKEY 3121 with USB cable

HID

HID R31210320-01 OMNIKEY 3121 RFID (FW2.04)

SKU CH-6WHY-NCGVA MPN R31210320-01

A standard RFID reader with firmware 2.04 for point-of-sale systems

  • Standard SB configuration for direct integration
  • OMNIKEY 3121 platform with firmware 2.04
  • RoHS compliant for regulated environments
  • HID reliability in a compact RFID reader

HID OMNIKEY 3121 RFID Reader

The HID OMNIKEY 3121 is a desktop RFID reader built for contactless smart card operations. It connects via a standard USB interface and carries firmware version 2.04. The unit complies with RoHS directives and is supplied in new condition.

Suited for access control and identity verification

This reader fits workflows that require a simple USB-connected device for reading contactless credentials. It is not intended for buyers who need a contact smart card slot, dual-interface capability, or a ruggedised housing for outdoor deployment. Those requirements fall outside the feature set of this model.

How it compares

Measured against everything we stock in RFID & Smart Card Readers, at today’s prices. Recalculated every night.

Price $26.99
Pricier than about 60% of the 294 comparable items (median $21.99).

Specifications

Size & build
Shipping weight0.27 kg
Package size102 × 76 × 51 mm

Questions about this item

How much power does the OMNIKEY 3121 draw during continuous operation?

The OMNIKEY 3121 draws power directly from the USB port it is connected to, requiring no separate power supply for all-day use.

Which host interface must my system provide for the R31210320-01 to function?

The reader requires an available USB port on the host system to communicate and receive power.

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