There are two options to access the drop location: Option 1: 'Directly using UNC Path' The mechanism that uses UNC Path to ...

There are two options to access the drop location:

Option 1: 'Directly using UNC Path'
The mechanism that uses UNC Path to access the drop location. The service account running the deployer requires permission to access the drop location. This provides faster transfer rates.

Option 2: 'Through the Release Management Server over HTTP(S)'     
The mechanism that uses HTTP(S) to transfer files to the Deployer. The Deployer does not require access to the drop location - but the Release Management Server does. The transfer rates are slower.