Outstanding software features (e.g. adjustable acceleration and braking ramps, 3 program buttons (only Centrifuge 5425), short function without continuous pressing of the key).
OptiBowl™ design for quiet operation, even without a rotor lid.
Soft-touch one-finger lid closure for ergonomic operation.
Aerosol-tight Eppendorf QuickLock™ lids for simple and safe handling.
Special features for Centrifuge 5425 R:

Outstanding cooling system for processing temperature-sensitive samples from 0.2 – 5 mL.
The compressor technology reduces vibrations and protects your samples.