5 Things to Know About the TerraMaster F4-421's Apollo Lake Celeron

The F4-421 uses an Intel Celeron J3455 from the Apollo Lake generation. This chip is dated but still adequate for basic NAS tasks.

It performs well for file serving, media streaming, and light virtualization. Don’t expect it to handle heavy transcoding or multiple VMs smoothly.

The J3455 lacks modern hardware encoding for newer video codecs. This means 4K transcoding will be sluggish or require software workarounds.

Power efficiency is decent, drawing around 20-30 watts under load. It won’t spike your electricity bill but isn’t as efficient as newer chips.

For home users or small offices with modest needs, the processor is still functional. If you need faster encryption or more concurrent users, look for a newer model.