Revox Re:source MMM - Manual (Page 12)

Multi Media Re:source
11
C
ABLING
if the communication between router (WLAN) and MMM
should be wireless, the dotted LAN connection may
not be in place.
NAS
: Network hard disc / Network Attached Storage Device
UPnP-AV :
Universal Plug and Play – for Audio- / Video transfer
The MMM can only communicate with NAS or servers
that support the UPnP-AV standard, which was specially
developed for the streaming of audio and video content.
USB
: USB mass storage, either a USB memory stick or
an external hard disc (with its own power supply)