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CardMan® 3921 USB
CardMan® 3921

OMNIKEY, one of the world´s leading manufacturers of innovative smart card readers, offers with the CardMan® 3921 a high-performance smart card reader in a 3,5” floppy form factor for desktop or tower PC build-in usage. This easy-to-install USB device is well suited for all contact smart card operations like online-banking or digital signature applications.

Order Information

Product Number:
Price per unit: 54.95 US $
39.95 £
49,95 €
10 units and more: 53.95 US $
39.95 £
48,95 €
0 months

- discontinued product with limited availability - we have the item still in stock.



higher volumes up on request
CardMan® 3921 USB Alle Preise sind Netto-Preise. Verkauf nur an gewerbliche Abnehmer. Ask for project-pricing.

Product Information

It is a robust smart card reader to integrate into desktop or tower PCs via 3,5” floppy slot and it is easy to connect via internal USB-connector or external USB-port. The raeder includes digital signature, secure online banking and other online transactions, loyalty programs, healthcare solutions and many more future applications.

Standard Features

The CardMan® 3921 complies with all relevant industry standards such as ISO 7816, EMV (Europay, MasterCard, Visa) 2000, Microsoft® WHQL, USB CCID, PC/SC, HBCI (Home Banking Computer Interface) and many more. It is open for almost any smart card for any application on any computer. The usage within an application is based on standardized interfaces like PC/SC (ready for 2.0), OCF (Open Card Framework) or CT-API.



Technical Specifications

Host Interface

USB 2.0 CCID1 (also compliant with USB 1.1)

Transmission speed 12 Mbps

Power supply Bus powered

Smart Card Interface

Compliant with ISO 7816 and EMV,  2000

Supports T=0, T=1

Supports 2-wire: SLE 4432/42 (S=10),

3-wire: SLE 4418/28 (S=9), SLE 4404

Supports I2C

Card Size      ID-1 (full size)

High-performance smart card interface

(up to 420 Kbps when supported by card)

Smart card clock frequency up to 8 MHz

Supports 5V, 3V, and 1.8V smart cards

Supplies 60 mA current to power the smart card

Smart card movement detection with auto power-off

Automatic detection of smart card type

Short circuit and thermal protection

8 pin handling (C4/C8 supported)

Other features

Status indicator Green LED


Customer specific logo or label On request

Customer specific colors On request


Microsoft WHQL3 certified

EMV2 2000 Level 1 certified

ISO 7816


USB 2.0 (1.1 compatible)


PC/SC driver (ready for 2.0)

CT-API (on top of PC/SC)

OCF (on top of (PC/SC)

PC /SC Driver Support

Windows® 98

Windows® ME

Windows® 2000

Windows® XP

Windows® CE 5.0/ CE.NET

(depending on hardware)

Windows® 64bit(AMD64, EM64T, IA64)


Mac® OS X

Embedded Technology

CardMan Smart@Link Chip set

Hardware Specifications

Color Computer gray

Dimensions (LxBxH) 125 x 100 x 25mm

                              4.92” x 3.94” x 0.98”

Weight 85 gr/2.99 ounces

Operating temperature 10-55°C/ 32-131°F

Operating humidity 10-90% rH

Composition ABS

Connector cable 80 cm / 31.5”

Durability 100,000


Meantime between failure (MTBF) 500,000 Hours

Safety and Environmental Standards


FCC In preparation

UL In preparation

VCCI In Preparation

MIC In Preparation