On https://downloadcenter.intel.com/product/35125/Solid-State-Drives Downloads for Solid-State Drives i can find the 3.4.1 SSD Toolbox but this is not the lastest. It's "Previously released"
So what is the lastest SSD Toolbox ?
Thank you for your question.
The latest Intel® SSD Toolbox compatible with your SSD is https://downloadcenter.intel.com/download/26574/Intel-Solid-State-Drive-Toolbox version 3.4.3.
At the time you created this thread, the link had not been fully integrated into our website. I've created a report, and the issue should be resolved shortly.