1. DNS-327L vs. DNS-320L

2. DNR-202L vs. DNR-322L

3. Model Number  
DNS-320L
DNS-327L  
DNR-322L  
 CPU / Flash / RAM
1.0 GHz
1.2 GHz
1.2GHz
128MB / 256MB 
128MB / 512MB 
 USB Host port / USB Copy Button
2.0 x 1 / Yes 
3.0 x 1 / Yes 
2.0 x 1 / No (USB for UPS monitoring only)
 Schedule Power On/Off
Yes No
Hot Swappable
FW 1.2 & above
IP Camera view/Playback on WEB GUI
4CH Live Video/ Playback
9CH Live Video/ 1CH Playback
Supported IP camera
mydlink IP camera
All D-Link IP Camera (mydlink & business cam)
DLNA 1.5 Certified Media Server
Yes 
Torrent Download 
Cloud Access
mydlink portal (for upload/download file)
mydlink Portal (view camera live/playback)
Zero Configuration
Coming soon
Media Library
Mobile App Support
mydlink Access-NAS (for upload/download file)
(currently no app to see camera live/playback)
D-view Cam Mobile (live view & playback, need WAN IP/DDNS)
mydlink lite (live view only, UPnP)
File / Photo / Audio / Surveillance Center
IP camera recording/viewing only
Add-on Interface and applications
Volume Encryption