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The specific power bank model you mentioned, "Anker - Power Bank (20K, 87W, Built-In USB-C Cable) - Black," isn't directly referenced in the knowledge fragments available. However, for similar products where pass-through charging functionality is listed, it is often dependent on the input power and certain device specifications. It is noted, for instance, in one of the Anker Power Bank models with built-in cables (e.g., 165W and 25K), that pass-through charging is supported when the input power meets certain thresholds such as 20W or greater. In contrast, some other models like Anker 313 Power Bank explicitly mention that they do not support pass-through charging to preserve the lifespan of the power bank. To determine if the specific "Anker - Power Bank (20K, 87W, Built-In USB-C Cable)" supports pass-through charging, it would be best to verify this feature directly under the product specifications with your provided link or further confirm if it aligns with similar Anker power bank lines supporting pass-through charging with certain input power requirements.
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