If you legitimately need a replacement key for software you own:

The (now part of the Thales Group) is a high-security hardware dongle used to protect commercial software from piracy and unauthorized use.

Uses standard Windows HID drivers, eliminating the need for end-users to install specific driver software. Key Variants: End-User Keys - Sentinel Product Documentation

At the heart of the 79200 is Advanced Encryption Standard (AES) with a 256-bit key. This is the same encryption standard used by governments and financial institutions to protect top-secret data. When your software communicates with the dongle, that communication channel is encrypted. This prevents hackers from "sniffing" the data traffic between the software and the key to replicate its behavior.

Supports various models, including perpetual licenses, feature-based activation, pay-per-use, and time-based limits.

Polycarbonate housing; operating temperatures ranging from -25°C to +85°C. Specialized Models & Configurations Modern Sentinel HL keys can be configured in two main ways: