C2600-adventerprisek9-mz.124-25d.bin [2021]

"Unique filename" could be "distinctive file name|unique naming convention|specific identifier".

"Part of the extensive range" could be "component of the broad array|part of the expansive collection|element within the comprehensive set". c2600-adventerprisek9-mz.124-25d.bin

"Indicates the device series, feature set, and software version" – maybe "shows the equipment type, capability set, and code revision|signifies the product line, function set, and release number|denotes the router model, feature suite, and software update". and code revision|signifies the product line

"Manage and configure" could be "operate and adjust|control and set up|govern and customize". and release number|denotes the router model

"In this article, we'll delve into the details" – "delve into" can be "explore|discuss|examine".