Unfortunately, I couldn't find an official portable version of the Marvell MiFi Tool v1.4.00. However, I can guide you on how to create a portable version or provide an alternative solution.
The Marvell MiFi Tool is a utility used to configure and manage MiFi devices, which are portable Wi-Fi hotspots. If you're looking for the v1.4.00 version, you might be trying to troubleshoot or configure your device.