The flagship feature of version 5 is the Dynamic Turbo Buffer . Older file copiers used a static RAM cache (e.g., 256MB). Supercopier 5 monitors your system's available RAM and I/O pressure in real-time. If you are copying a 50GB file and you have 16GB of free RAM, Supercopier 5 will intelligently allocate up to 4GB as a write cache. This drastically reduces disk seeking, resulting in up to a on traditional HDDs and a marginal but noticeable improvement on SATA SSDs.
If you find a download explicitly titled proceed with caution. Because there is no official v5 release from the primary maintainers, these are often "adware-wrapped" versions of the legitimate v2 or v4 open-source code. Supercopier 5