Reolink cameras that support FTP or ONVIF protocols could be used on NAS.
|Supported models||RLC-410; RLC-410-5MP; RLC-410S; RLC-411; RLC-411-5MP; RLC-411S; RLC-411S-5MP; RLC-420;RLC-420-5MP; RLC-422-4MP; RLC-422-5MP; RLC-423; RLC-423S; RLC-511; RLC-520; C1; C1 Pro; C2; C2 Pro; E1 Pro; E1 Zoom; RLC-410W; RLC-410W-5MP; RLC-410WS; RLC-411WS; RLC-411WS-5MP; RLC-422W; RLC-423WS; RLC-511W; RLC-422W-5MP|
Note: E1 pro supports ONVIF and RTSP protocols and it doesn't support FTP. Therefore, you could add E1 pro to QNAP and Synology, but you could not use FTP to upload E1 Pro's videos to other NAS/hard disk.
If you want to know more about how to have Reolink camera records to NAS, you may refer to