The Eppendorf CryoCube F440 series of ultra-low temperature (ULT) freezers is designed for safe storage of valuable samples at -80°C. Here are some key features of the CryoCube F440:

1. Fast Recovery: The CryoCube F440 is equipped with a strong compressor that ensures rapid recovery to -80°C after each freezer access. This is crucial for labs where multiple openings per day are common.

2. Energy-Efficient: The combined insulation of vacuum insulation panels and polyurethane foam minimizes energy consumption during long-term storage. The CryoCube F440h model, in particular, offers extremely low energy usage.

3. Sample Safety: Heavy-duty compressors enable quick pull-down times, allowing fast re-use after cleaning or defrosting. The freezers also have short recovery times after opening, ensuring extra sample safety.

4. Two Models:

   • CryoCube F440n:
     • 130 mm wall with polyurethane insulation.
     • “Green” hydrocarbon-based cooling liquids (R290/R170).
     • Air-cooling.
   • CryoCube F440h:
     • 130 mm wall with polyurethane insulation and vacuum insulation panels.
     • “Green” hydrocarbon-based cooling liquids (R290/R170).
     • Air-cooling.

5. Sample Access: The 5-compartment layout and 5 insulated inner doors make it easy to access and store samples at -80°C.

6. Volume: The CryoCube F440 has a volume of 440 L (15.5 cubic feet).