Portable Exclusive - Ultracopier

Navigate to Options > Copy Engine. Select "Exclusive file access" under File conflict management.

The "checksum" plugin (included in the exclusive portable package) adds a post-copy verification step: ultracopier portable exclusive

In Portable Exclusive mode, you can "reserve" CPU cores and I/O bandwidth. If you set the speed limit to 50%, Ultracopier strictly enforces that limit, preventing your NAS or external HDD from bottlenecking your entire system. Navigate to Options > Copy Engine

When imaging a drive, stopping on a read error compromises the chain of custody. The Portable Exclusive’s "Skip & Log" feature allows you to recover maximum data from dying drives without crashing. If you set the speed limit to 50%,

This is a hardware-aware feature specific to the Portable edition.

Standard Ultracopier has a complex UI. The Exclusive version includes a hidden minimalist mode that strips the UI down to a single progress bar and speed graph, blending seamlessly into the Windows taskbar without pop-ups.