Secugen Unity 20 USB-S and USB-S Plus
The Secugen Unity 20 USB-S (100 users) and Unity 20 USB-S Plus (10,000 users) are an ultra-compact, smart fingerprint recognition system built for simplicity, security, and seamless integration. Whether you’re deploying biometric authentication in enterprise systems, embedded environments, self-service kiosks or custom applications, Unity 20 USB-S and Unity 20 USB-S Plus deliver powerful performance in a sleek, affordable package.
Smart, All-in-One Biometric System
More than just a reader, the Unity 20 USB-S and USB-S Plus are a fully programmable fingerprint recognition system. They capture, extract, matche, and securely stores fingerprint templates—all within the device itself.
Key Benefits
- End-to-End Fingerprint Processing: Captures, extracts, and matches fingerprints directly on the device—no need for external software or cloud processing.
- Secure Template Storage: Keeps biometric data safely stored within the device, reducing exposure to network vulnerabilities and enhancing privacy compliance.
- Fully Programmable Platform: Offers developers flexibility to customize fingerprint workflows and integrate seamlessly into diverse applications.
- Fast Authentication and Low Latency: On-device, real-time matching enables rapid identity verification without relying on host system resources.
- Reduced Integration Complexity: Eliminates the need for separate biometric modules or middleware, streamlining deployment.
- Enhanced Reliability: Operates independently of host system performance, making it ideal for embedded systems and mission-critical environments.
Works Anywhere, Right Out of the Box
Unity 20 USB-S and Unity USB-S Plus connect effortlessly to Windows®, Android®, Linux®, and macOS® systems using a single USB cable. Thanks to its Serial-over-USB architecture, it enumerates as a standard CDC/ACM virtual COM port—no proprietary drivers or OS-specific frameworks required.
- Plug-and-play deployment
- Compatible with VDI/thin clients and remote desktop sessions
Ideal for tightly managed or resource-constrained IT environments
Developer-Friendly by Design
Unity 20 USB-S and Unity 20 USB-S Plus are built with developers and system integrators in mind. An available free developer kit includes robust tools and documentation to accelerate application development and reduce integration friction.
- Built-in Fingerprint Management System (FMS) API that supports C/C++, .NET, Python, Java, and any language that can open a serial port
- Well-documented serial command set
- Sample code for rapid prototyping
Features
- FBI Certified (PIV, FIPS 201, Mobile ID FAP 20 Compliant) meets FBI Image Quality standards
- Fingerprint capture, processing, extraction, and matching using Fingerprint Management System (FMS) software that works right out of the box
- On-device fingerprint template storage and support for SG400, ISO/IEC 19794-2, and single view ANSI INCITS 378-2004 templates. The Unity 20 USB-S comes in 2 versions: Standard (standard storage capacity) and Plus (expanded capacity).
- NIST MINEX Certified and FIPS 201 Compliant embedded fingerprint algorithms for template generation and matching
USB cable with Serial-over-USB connectivity - Rugged, high-performance, maintenance-free optical sensor resistant to scratches, impact, vibration and electrostatic shock
- Fast recognition and high quality imaging of difficult fingerprints (dry, wet, scarred) in challenging environments
- Fast and accurate verification
- Readily accessible for any finger
- Auto-On™ – automatic finger detection technology (when used with apps built with SecuGen SDKs)
- Smart Capture™ – self-adjusting scanning technology (when used with apps built with SecuGen SDKs)
- Device Recognition™ – device authentication technology (when used with apps built with SecuGen SDKs)
- Fingerprint template encryption (when using SecuGen Proprietary template format)
- Latent print rejection (does not accept prior fingerprints left behind on sensor)
- Ultra-compact, lightweight and portable
- Integrated finger guide
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Product
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Unity 20 USB-S
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Unity 20 USB-S Plus
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Model
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HU20-ASF-US
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HU20-ASFX-US
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Fingerprint Module (Type)
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U20-ASF (contact)
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U20-ASF (contact)
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Biometric Standards/Specs
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INCITS 378, ISO/IEC 19794-2, ISO/IEC 19794-4, FIPS 201, FBI (PIV, Mobile ID FAP 20), NIST MINEX, WSQ
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INCITS 378, ISO/IEC 19794-2, ISO/IEC 19794-4, FIPS 201, FBI (PIV, Mobile ID FAP 20), NIST MINEX, WSQ
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CPU
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1 GHz MIPS
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1 GHz MIPS
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Template Capacity
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200 templates (100 users)
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20,000 templates (10,000 users)
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Supported Fingerprint Templates
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SecuGen Proprietary, ANSI INCITS 378-2004, and ISO/IEC 19794-2 formats
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SecuGen Proprietary, ANSI INCITS 378-2004, and ISO/IEC 19794-2 formats
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NIST/MINEX Compliance
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Template Generator and Template Matcher
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Template Generator and Template Matcher
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Image Resolution
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500 PPI
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500 PPI
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Platen Size
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18.2 mm x 23.1 mm
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18.2 mm x 23.1 mm
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Sensing Area
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15.24 mm x 20.32 mm
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15.24 mm x 20.32 mm
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Image Grayscale
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256 levels (8-bit)
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256 levels (8-bit)
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Light Source
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LED
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LED
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Other Features
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Auto-On™, Smart Capture™, Device Recognition™, 360 Degree Fingerprint Rotation
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Auto-On™, Smart Capture™, Device Recognition™, 360 Degree Fingerprint Rotation
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External Connection
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USB
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USB
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Supply Voltage
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5V
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5V
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Current Consumption
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180 mA max.
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180 mA max.
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Dimensions
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53.9 mm x 58.5 mm x 31.9 mm
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53.9 mm x 58.5 mm x 31.9 mm
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Weight
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97 g
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97 g
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Cable Length
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1500 mm
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1500 mm
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Operating Temperature
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-20° ~ 65°C
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-20° ~ 65°C
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Operating Humidity
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90% or less RH, noncondensing
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90% or less RH, noncondensing
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Compliance
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FCC, CE, KC, RoHS3, CB, WEEE, USB 2.0 compatible
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FCC, CE, KC, RoHS3, CB, WEEE, USB 2.0 compatible
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Water/Dust Resistance
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IP54 rated
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IP54 rated
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Warranty
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One year limited
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One year limited
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Supported Operating Systems
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Windows, Android, Linux, macOS
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Windows, Android, Linux, macOS
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Benefits of Using SecuGen Fingerprint Readers
SecuGen’s all-in-one fingerprint systems are powerful yet easy to use and can securely perform all biometric functions within the device without reliance on an external host for processing. Backed by the industry’s best warranty, years of field use and proven reliability under extreme conditions, SecuGen fingerprint readers have been highly sought after for their consistent performance and affordability for a wide variety of applications in diverse environments throughout the world.
When used for biometric authentication as part of an overall security program, SecuGen fingerprint readers can help reduce the hassles of password overload, decrease the risks of security breaches, improve accountability and add true non-repudiation, all while making it more convenient and intuitive for any user.
Look to SecuGen for advanced, fingerprint biometric technologies that let your fingerprints act like digital passwords that cannot be lost, forgotten or stolen.
For more information on this product range please email us at sales@eyenetwatch.com.

