HID R31210320-01 OMNIKEY 3121 USB Contact Smart Card Reader - Two-tone Gray - Cable 59. 1" - USB 2. 0/3. 0 Type A - Banking - Digital Signature
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
The OMNIKEY 3121 reader utilizes a contact-based media interface, requiring physical insertion of a smart card to read embedded chip data. Connectivity is handled through a fixed cable terminated with a standard USB Type A connector, which is backward and forward compatible with USB 3.0 and USB 2.0 host controllers for universal plug-and-play operation.
This model meets key regulatory and procurement standards, including TAA compliance for U.S. government contracts and environmental directives like WEEE, RoHS, and REACH. The compact physical form factor, measuring 2.6 inches wide by 3.1 inches deep by 1.1 inches high, allows for discreet placement without occupying significant desk real estate.
This section brings together practical product details such as Connectivity Technology, Media Supported, Cable Length, Host Interface, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The OMNIKEY 3121 stands out for its combination of robust construction, extensive compatibility, and adherence to strict compliance standards, offering a dependable smart card reading solution for secure enterprise and institutional settings.
Broad OS Support
Ensures deployment flexibility across a wide range of computing environments, from current Windows 11 and macOS systems to legacy Windows CE and server platforms.
- Windows 11/10/8.1/8/7/Vista
- Windows Server 2012/2008 R2
- macOS, Android
- Debian, Ubuntu Linux
Integrated Cable Design
The attached 59.1-inch cable eliminates the need for a separate connection cord, reduces cable clutter, and provides ample reach for optimal reader placement relative to the workstation or terminal.
Procurement-Ready Compliance
TAA compliance facilitates purchasing for government and educational institutions, while environmental certifications demonstrate a commitment to sustainable electronics manufacturing.
Deployment / Use Cases
This contact smart card reader is purpose-built for scenarios demanding secure, physical authentication. Its primary applications include banking transaction authorization, where teller stations or ATM adjuncts require cardholder verification, and digital signature processes for legally binding electronic documents, contracts, or forms.
Additional deployment environments encompass secure facility access control points, corporate network login stations, healthcare record authentication terminals, and university library or lab resource management systems. The reader's compatibility with both modern and legacy operating systems makes it suitable for phased technology upgrades or mixed-ecology IT environments.
Financial Services & Banking
Deploy at teller windows, back-office workstations, or customer kiosks to authenticate debit, credit, or identity cards for transaction processing and secure account access.
Enterprise Digital Workflow
Integrate into document management or HR systems to enable employees to use their smart cards for signing off on digital approvals, timesheets, or confidential reports.
Physical Profile
The reader features a compact, low-profile design with a two-tone gray finish that blends professionally into office or institutional decor. Its modest dimensions and light weight allow for stable placement on any flat surface or can be easily incorporated into custom enclosures or kiosk builds. The integrated cable exits from the rear, keeping the front face clean for card insertion.
- Width
- 2.60" (66.04 mm)
- Depth
- 3.10" (78.74 mm)
- Height
- 1.10" (27.94 mm)
- Weight
- 3.88 oz (110 g)
- Length
- 59.10" (1501.14 mm)
Highlights
- HID OMNIKEY 3121 USB contact smart card reader for secure authentication.
- Integrated 59.1-inch cable for flexible placement and reduced clutter.
- Host interface: USB 2.0 Type A and USB 3.0 Type A for broad compatibility.
- Two-tone gray finish for a professional, discreet appearance.
- Supports Windows 11, 10, 8.1, 7, Server, macOS, Android, and Linux.
- TAA compliant, suitable for government and institutional procurement.
- Environmentally friendly with WEEE, RoHS, and REACH compliance.
- Compact dimensions: 2.6" W × 3.1" D × 1.1" H (66.04 × 78.74 × 27.94 mm).
- Ideal for banking, digital signature, and secure access applications.
- Backed by a 2-year limited warranty for reliable performance.
Specifications
| Specifications | |
|---|---|
| Manufacturer | ASSA ABLOY |
| Manufacturer Part Number | R31210320-01 |
| Brand Name | HID |
| Product Line | OMNIKEY |
| Product Model | 3121 |
| Product Name | OMNIKEY 3121 USB Card Reader |
| Packaged Quantity | 1 |
| Product Type | Smart Card Reader |
| Technical Information | |
| Connectivity Technology | Cable |
| Media Supported | Contact |
| Cable Length | 59.10" (1501.14 mm) |
| Interfaces/Ports | |
| Host Interface | USB 2.0 Type A,USB 3.0 Type A |
| Physical Characteristics | |
| Color Family | Gray |
| Product Color | Two-tone Gray |
| Height | 1.10" (27.94 mm) |
| Width | 2.60" (66.04 mm) |
| Depth | 3.10" (78.74 mm) |
| Weight (Approximate) | 3.88 oz (110 g) |
| Miscellaneous | |
| Application/Usage | Banking,Digital Signature |
| Operating System Compatibility | Windows 11,Windows 10,Windows 8.1,Windows 8,Windows 7,Windows Vista,Windows Server 2012,Windows Server 2008 R2,Windows CE 6.0,Windows CE 7.0,Debian 6.0,Ubuntu 11.04,macOS,Android |
| TAA Compliant | Yes |
| Environmentally Friendly | Yes |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE),Restriction of Hazardous Substances (RoHS),Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What type of smart cards does the OMNIKEY 3121 reader support?
The OMNIKEY 3121 is a contact smart card reader, meaning it supports smart cards that require physical insertion and electrical contact with the card's chip. It reads data from the embedded chip on compatible contact-based cards, commonly used for authentication, digital signatures, and secure access in enterprise and financial environments.
What is the length of the attached cable, and is it detachable?
The reader comes with a permanently attached (non-detachable) cable that measures 59.10 inches (approximately 1501 mm) in length. This integrated cable design ensures a reliable connection and provides ample reach for positioning the reader conveniently on a desk, counter, or within a kiosk enclosure relative to the host computer.
Which operating systems are compatible with this HID card reader?
The OMNIKEY 3121 offers extensive operating system compatibility. It supports modern Windows versions including Windows 11, 10, 8.1, and 7, as well as legacy systems like Windows Vista, Windows Server 2012, and Windows Server 2008 R2. It is also compatible with Windows CE 6.0/7.0, Debian 6.0, Ubuntu 11.04, macOS, and Android, covering a wide range of desktop, server, and embedded platforms.
What does TAA compliance mean for this product?
TAA (Trade Agreements Act) compliance indicates that the OMNIKEY 3121 reader is manufactured in or substantially transformed in a country that has a trade agreement with the United States. This status makes the product eligible for purchase by U.S. federal government agencies, state and local governments, and educational institutions that require TAA-compliant products for their procurement contracts.
What are the primary applications or uses for this smart card reader?
This reader is designed for secure authentication and digital signature applications. Its typical uses include banking transactions at teller stations or kiosks, digital signature workflows for legally binding electronic documents, secure login to corporate networks or workstations, and access control systems for facilities. It is well-suited for financial, government, healthcare, and educational institutions.
What environmental standards does this product meet?
The OMNIKEY 3121 meets several key environmental compliance standards: the Waste Electrical and Electronic Equipment Directive (WEEE) for responsible disposal, the Restriction of Hazardous Substances (RoHS) directive limiting certain hazardous materials, and the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulation. These certifications reflect a commitment to environmentally responsible manufacturing and product lifecycle management.
What screen size is listed?
HID OMNIKEY 3121 USB Card Reader - Contact - Cable - USB 2.0 Type A, USB 3.0 Type A - Two-tone Gray - Banking, Digital Signature (R31210320-01) is best judged through its screen, connectivity, and installation specifications, which help buyers confirm visual fit and deployment suitability.
What resolution or display format is specified?
HID OMNIKEY 3121 USB Card Reader - Contact - Cable - USB 2.0 Type A, USB 3.0 Type A - Two-tone Gray - Banking, Digital Signature (R31210320-01) is best judged through its screen, connectivity, and installation specifications, which help buyers confirm visual fit and deployment suitability.