Specifications
Starter Kit
Included SOM
Included Carrier Board
Micro-USB Debug Cable
Ethernet Cable
12V Power Supply
Antena
Boot/Rescue SD Cards
Carrier Board Design Package
Part Number

VAR-STK-VS91

System on Module
CPU Name

NXP i.MX91

CPU Type

Cortex™-A55

CPU Cores

1

CPU Clock

1.4GHz

RAM

2 GB LPDDR4

eMMC

16 GB

Ethernet

2x 10/100/1000 Mbps

Wi-Fi

Certified Wi-Fi 6 dual-band 802.11ax/ac/a/b/g/n with optional 802.15.4

Bluetooth

BT/BLE5.4

LVDS

No

Audio codec

Yes

Touch panel

Resistive, Capacitive

OS support

Linux

Temperature

-25 to 85°C

CAN Bus

x2

Part number

VAR-SOM-MX91S_1400C_2048R_16G_AC_EC_TP_WBD_ET

Symphony-Board
Carrier Board
SO-DIMM200

Supporting the VAR-SOM-MX91

Headphone

3.5 mm connector

Line – in

3.5 mm connector

Digital microphone

on-board

SD-CARD

SD Card Socket

CAN Bus

CAN/CAN-FD (Flexible Data-Rate)

Ethernet

2x 10/100/1000 Mbps, RJ45

VAR-STK-VS91_LO
STK

STK: Starter kit

Order the product online

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Support
Supporting you every step of the way - from ideation to launch and beyond. Free and prompt support directly from Variscite’s R&D experts.

Our long-standing partnerships

Our close partnerships with leading technology vendors provide our customers with early access to the latest advanced solutions, ensuring your projects begin with a solid and future-ready foundation.

Why Variscite?

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Quality
In-house manufacturing with comprehensive quality control - certified to ISO9001 and ISO13485 medical standards.
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Pin2Pin
Our Pin2Pin product families maximize scalability and enable seamless migration to future technologies without redesigning the carrier board.
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Longevity
15-year guaranteed hardware availability, backed by continuous software updates and support.
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Customizability
Configure your system with precision and flexibility - select only the features you need and reduce costs.

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    Updates
    Software releases
    February Software Releases
    Stay current with software updates – Keep your Variscite SoMs performing at their best with our latest software releases.
     
    23.02.2026
    Newsroom
    DART-MX91
    Variscite announces the DART-MX91, a versatile System on Module (SoM) designed for cost-sensitive edge computing applications. Starting at just $35, this compact module delivers essential performance and connectivity features while maintaining Variscite’s generous longevity commitment.
    The DART-MX91 leverages NXP’s i.MX91 SoC architecture to provide an ideal solution for IoT, smart cities, connected sensors, portable devices, and industrial applications. Key specifications include:
    19.12.2024
    Blog
    DART-MX93
    This article provides step by step instructions on how to start developing your own Machine Learning (ML) applications using Variscite’s System on Modules. It shows how to build an image using the Yocto Linux BSP with a collection of development tools, utilities, and libraries for building ML applications from the NXP eIQ™ ML Software Development Environment, how to run the default examples built with the image, and finally, how to write a simple ML example from scratch.
    1.1. eIQ™ Machine Learning Software Development Environment Overview
    eIQ™ allows users to easily develop a complete system-level application to solve ML problems related to vision, audio, time-series data and so on. Common examples are face recognition, pose estimation, gesture recognition, speech accents interpretation, etc.
    12.08.2024 Diego Dorta