SAP's SFTP Adapter Chunk Mode Option with Std Adapter Modules

I used SAP's Adapter feature chunk mode option, it worked great. But I added ZipBean Module in the chain that worked very well as well. But one of the note says “Custom Modules can’t be used” – does this mean ZipBean a standard module?

Please let me know if any SAP’s relevant adapter Modules can be used with this chunk mode option

Thanks,

Laxman