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Omnikey 3121 USB Card Reader

Manufacturer Code: R31210320-01 by HID
Item Code: R31210320-01

The OMNIKEY 3121 USB Card Reader is a high performance USB smart card reader aimed at desktop use. Suited for all smart card operations like online-banking and digital signature applications.

  • USB 2.0


  • Standard standing base

New hardware revision R31210320-01 replaces R31210220-01 - now with USB 3.0 support

More Info
(£13.50 ex VAT) (Price:£16.20 inc VAT)
    1 - 9 £13.50
    10 - 49 £12.1510%
    50 - 99 £11.6514%
    100+ £11.1118%
    Prices excl. vat

Questions & Advice

Have a product question? Feel free to call and one of our trained staff will help.

Delivery Options & Info

Order before 3PM for next day delivery.
Subject to stock availability and credit control.

  • Free Courier Next Business Day
    Orders Over £150 - UK mainland only.

  • Express Courier
    £9.50 - UK mainland, next business day. For offshore UK islands and the Scottish Highlands, please allow 2 - 3 working days.

  • Pre 10:30 Next Business Day
    £37.50 - UK mainland only.

  • Collection From North London, NW7
    Collections by appointment only.

  • International Shipping
    Rates available at checkout.

Payment Options

  • Credit & Debit Cards
    Accepted online or over the phone.

  • Purchase Orders
    Accepted via email, fax and online from schools, universities, UK government bodies, NHS, armed forces and pre-arranged credit accounts.

  • BACS and Cheque
    Accepted at checkout, cheques payable to "Plastic-ID.com Limited".

Returns Policy

14 Day Return Policy

Please contact us within 14 days of receiving your goods if you wish to return any items. All goods must be returned unopened and in a resalable condition. For further details, please see our terms and conditions.

Product Description


The OMNIKEY 3121 USB Card Reader is a high performance USB smart card reader aimed at desktop use. It has multiple standing options and is contained within a robust housing. The OMNIKEY 3121 is an easy-to-install USB card reader suited for all contact smart card operations like online-banking or digital signature applications.

Key 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


Base Model NumberOMNIKEY 3121
Card SizeID-1 (Full Size)
StandardsISO 7816
Supported Card TypesClass A: 5V @ 60 mA; Class B: 3 V @ 60 mA; Class C: 1.8V @35 mA
ProtocolsAsynchronous: T=0; T=1
Synchronous: S=8 (I²C) ; S=9 (3-wire); S=10 (2-wire)
Insertion Cycles100,000
Smart Card Interface Speed420 Kbps
Smart Card Clock Frequency8 MHz* / up to 12 MHz**
Smart Card DetectionMovement detection with auto power-off; Automatic detection of smart card type; Short circuit and thermal protection
8-Pin HandlingC4 / C8 supported
Host InterfaceUSB 2.0 Full Speed Device (12 MBps)
USB 3.0 extended operability, tested with hubs/controllers**
Transmission Speed12 Mbps (USB 2.0 full speed)
Connector / CableUSB Type A connector; 59.1" (150 cm) cable
Operating SystemsWindows 10**/8.1/8/7/Vista/Server 2012**/Server 2008R2
Windows CE (5*/6/7) depending on hardware
Linux Debian 6.0+ / Ubuntu 11.04+/ Fedora 15+; Open SUSE 11.4+
Mac OS X; Android*
DriverCCID native driver from operating system
HID proprietary driver*
Supported APIsPC/SC - API, CT-API* (on top of PC/SC)
Status IndicatorBlue LED
HousingTwo-tone grey, ABS plastics
Dimensions3.15" x 2.64" x 1.1" (80 x 67 x 28 mm)
WeightReader only 3.88 oz (110g); Standard standing base 1.09 oz (31g)
Operating Temperature32–131° F (0–55° C)
Operating Humidity10–90% rH
Storage Temperature-4 - 176 F (-20 - 80°C)
Meantime Between Failure (MTBF)500,000 hours
Compliance / CertificationMicrosoft WHQL*; EMVCo Terminal Level 1
USB 2.0; TAA*; GSA Fips 201 approved list*
Regional CertificationsCE, FCC, UL, VCCI, KCC**, MIC, RCM (C-Tick)
EnvironmentalWEEE, RoHS, Reach
WarrantyTwo-year manufacturer’s warranty.

* X-Chip only (all part numbers with Rxxxxx0xxx; Rxxxxx1xxx; Rxxxxx2xxx)
** Aviator only (all part numbers with Rxxxxx3xxx)


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Additional Information

Additional Information

SKU R31210320-01
Manufacturer HID
Manufacturer Code R31210320-01
UPC Barcode No