Acronis Cyber Protect Home Office, Acronis True Image 2021, 2020, 2019, 2018, 2017 and 2016 support the following network protocols:

SMB (Server Message Block)
CIFS (Common Internet File System, Microsoft`s reworked version of SMB)
SMB2 (introduced with Windows Vista)
SMB3 (introduced with Windows 8. Latest update is SMB 3.1.1 as of November 2019, introduced with Windows 10)
FTP (File Transfer Protocol, supported only in Windows version of Acronis True Image, Linux and WinPE-based rescue medias)