Please provide more information on which application is used.
Currently there are 2 client applications with similar names:

- Aspera for Desktop (AfD)
- Aspera Desktop Client (ADC)
Maybe share a few more details - a screenshot of the data volume you're referring to, your Windows version, etc.
Keep in mind that Windows Task Manager reports Layer 2 (Ethernet-level) network volumes - that is, bytes received directly from the network adapter. These counts include IP, TCP/UDP, and other protocol headers, not just the actual payload.
In contrast, Aspera typically reports the payload data written to disk, after all protocol handling, retransmissions, and so on.
So, a couple of screenshots - one from the client application and one from Task Manager - would really help clarify what's being measured and make it easier to compare.
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Laurent Martin
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