dongleserver ProMAX®

The Business Solution for Dongle Management

The dongleserver ProMAX® is the big version for server rooms and provides access to software license dongles via a network. Compared to the smaller dongleserver Pro®, the dongleserver ProMAX® offers additional reliability and redundancy with two built-in power supplies and two network connections. In addition, the parameters, passwords, and certificates are automatically backed up to an integrated SD card. The dongle server is also equipped with a multi-segment status and fault display for information at a glance. The optional telescopic slides (Rack Mount Kit 3) facilitate device access in the server room.

Alles auf einem Blick

20 USB dongles for large teams

Failover protection

Built for server rooms & data centers

Automatic configuration backup

Product overview

Here is an overview of our technical specifications and security features to help you understand the key capabilities of our product.

Features

Network

2 × RJ-45, shielded (primary and secondary/backup network connection)
IEEE 802.3 (1000BASE-T, 100BASE-TX, 10BASE-T)
IPv4, IPv6

Interfaces

5 × USB 3.0 SuperSpeed, Type-A (USB ports 1–5)
15 × USB 2.0 Hi-Speed, Type-A (USB ports 6–20)
1 × SD card reader

Management Software

SEH UTN Manager (connection management)
SEH Product Manager (network device management)
Control Center (integrated user interface for configuration, administration, monitoring and maintenance via browser)

Supported operating systems

Microsoft Windows 10, 11 (SEH UTN Manager also for ARM64)
Microsoft Windows Server 2019, 2022, 2025
macOS 15 (Sequoia) or later
Linux* (DEB- and RPM-based, 64-bit)
*A successful installation cannot be guaranteed due to the multitude of Linux distributions. Install at your own responsibility.

Monitoring & Logging

WebDAV export (event log, backup), syslog export (syslog-ng)
Automatic backup to SD card
Status display, acoustic signal

Updates & Support

Regular software updates, technical support worldwide

Security

Encryption

TLS 1.2/TLS 1.3, HTTPS

Authentication

IEEE 802.1X (EAP-MD5, EAP-TLS, EAP-FAST, EAP-TTLS, PEAP)

Certificate Management

Self-signed certificate, certificate request, CA certificates, client certificates, PKCS#12 certificate, S/MIME certificate

Network security

SNMPv3, VLAN (IEEE 802.1Q)
TCP port access control (Whitelist/Blacklist, IP and MAC address filter)

Access control

Device access control (password protection, session login, user accounts: Administrator, USB Manager, Read-only user)
USB port access control (time-based port key control, device assignment, USB port deactivation, timeout)
USB HID class blocking, USB MSD class blocking

Notifications

Email notifications (status, certificate expiry), SNMP traps

Tools & Documentation

Dokumentation 1

Download

Tools & Documentation

Tool 1

Tool

It doesn't get any easier!

A user establishes a connection to a certain dongle through the software tool UTN Manager and uses the license-protected software locally as needed. At this time the dongle cannot be used by another user. Once the user has finished using the software and the connection to the dongle is deactivated, the dongle is free to be used by another user. This principle can be applied to any copy-protected software and ensures that customers are always on the safe side with the dongleserver ProMAX® because the software license regulations are never circumvented.

In case of some emergency e.g. the dongle server is defect, the dongleserver ProMAX® has two installed power supplies and two network connections to ensure maximum reliability. Additionally, the configuration can be backed up to an SD card and transferred quickly to another dongleserver ProMAX®. The dongleserver ProMAX® is also equipped with a multi-segment fault display to diagnose problems such as ‘SD card error’ or ‘power supply failure’ at a glance.

Ideal for Windows, Mac OS X and Linux!

For our dongleserver ProMAX® we offer an optional service package. With the dongleserver ProMAX® Serviceplus Package not only will the warranty be extended for an additional two years (total 5 year warranty) but we also guarantee an advance hardware replacement if the device is defect so that you can continue working without any interruptions.

Suitable for:

  • Large companies
  • SaaS service providers
  • Cloud service providers
  • System houses
  • Big services providers (IT, accounting, insurance etc.)

Extras

Technology Alliance Partner

Are you a software provider and interested in a special cooperation with SEH - the expert in network solutions? Do you want to enhance your marketing strategies and get sales support? Then join the SEH "Technology Alliance Partner" Program!

Find out more
Serviceplus

With the dongleserver ProMAX Serviceplus Package, your warranty is extended by two years (60 months total), and we guarantee advance hardware replacement in case of defects—ensuring uninterrupted work.

Find out more
Rackmount Kit RMK3

If you want to run the dongleserver ProMAX® in a server rack, use our rack mount kit RMK3 for easy installation of the dongleserver into 19 inch server racks!

Find out more
Order Number

  • M05812 (US)
Where to buy

FAQs

We know our products can be complex. These FAQs cover the most common questions about using and implementing them in your daily work. For specific questions, please contact our Support Team.

We collaborate with numerous software vendors, and many dongle-protected applications have been successfully verified with SEH Dongle Servers. However, we cannot provide a universal guarantee for every single dongle.

Please also check your software license terms, as some vendors explicitly prohibit running dongles in network environments. If in doubt, please check with your software vendor.

dongleserver ProMAX controls its fan and protection functions based on the internally measured temperature. The following values do not refer to the ambient temperature.

As the internal temperature rises:

  • at 95 °C, the fan switches on.
  • at 115 °C, the CPU clock frequency is reduced from 1,066 MHz to 533 MHz.
  • at 125 °C, the USB ports are disabled.

As the device cools down:

  • at 115 °C, the USB ports are enabled again.
  • at 110 °C, the CPU returns to its regular clock frequency.
  • at 85 °C, the fan switches off.

MTBF (Mean Time Between Failures) describes the statistical average operating time between failures.

The following values apply:

  • utnserver Pro: 300,000 hours
  • INU-50: 612,000 hours
  • INU-100 with relay use: 576,000 hours
  • INU-100 without relay use: 612,000 hours
  • dongleserver ProMAX: 563,000 hours

Note: MTBF is a statistical reliability value and not a guaranteed service life for an individual device.

For SNMPv3 communication with SEH Dongle Servers and USB Device Servers, the following methods are supported:'
Authentication:
MD5SHA-1 / SHA-96
Encryption:
DES / AES-128SHA-2 
methods such as SHA-224 and SHA-256, as well as AES-192, AES-256, and 3DES, are not supported. If your SNMP client uses one of these methods, a connection cannot be established.

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