Model 3142 USB4™ Switch Documentation and Downloads
Overview
The MCCI® Model 3142 USB4 Switch is a computer-controlled programmable 2:1 switch, connecting two USB Type-C® receptacles to a single Type-C plug. It is compatible with USB4 hosts and devices at signaling rates up to 80 gigabits/second, as well as other protocols such as Thunderbolt™ 4, Thunderbolt™ 3, USB 3.2, USB 2.0, USB Type-C Alternate Modes, and of course USB Power Delivery. It also supports Extended Power Range (EPR) sources and sinks, allowing it to be used with source and sinks at up to 48V at 5A.
MCCI Cricket UI Support
MCCI developed and released a convenient and user-friendly software "MCCI Cricket UI" control the Model 3142 USB4 Switch along with our other USB Switches and Connection Exercisers.
Use Cricket UI to:
- Detect connected MCCI devices
- Control switch operation
- Update device firmware.
Download: MCCI Cricket UI (Windows, Linux, macOS)
MCCI Cricketlib Support
MCCI Cricketlib is a Simple python library for detecting and controlling MCCI USB Switches (Model 3141,3142,2101,2301,3201) and related device. designed for basic control and automation use.
Technical Document
The following technical documents are available for download:
Firmware Update Instructions (Model 3142)
Follow the steps below to update the firmware on your Model 3142 USB4 Switch.
- Download the latest Model 3142 firmware (.hex) file from the attachments on this page.
- Download the install the latest version of MCCI Cricket UI (Windows, Linux, or MacOS).
- Launch MCCI Cricket UI.
- From the menu, select Tools--> Model 3141/3142 Firmware Update.
- Click Search to detect connected devices.
- Select the detect Model 3142 Switch.
- Click Load, choose the downloaded firmware HEX file, and start the update.
- Wait for the update process to complete before disconnecting the device.
Note: Do not disconnect power or USB cables during the firmware update.
Latest Firmware
- Current firmware version: v0107
Portal Update History
update 2026-01-05 12:00:00 IST
Update the Model 3142 Documents link and added the firmware update instructions
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