OOSSXX (4×100 Feet Video Power Cable BNC Extension Outdoor Wired Surveillance Camera All-in-One Cables for CCTV Security Cameras DVR System with 4xBNC Connectors and 4xRCA Adapters Black,4pcs Bullet Camera System In terms of working without

In terms of working without internet I've not tested that but i doubt if it will work

5mm DC charging port

it may take longer to fully charge

but also all RJ45 connector devices

Aluminium Camera Cover x 1/4/8/20/40/100

OOSSXX (4×100 Feet Video Power Cable BNC Extension Outdoor Wired Surveillance Camera All-in-One Cables for CCTV Security Cameras DVR System with 4xBNC Connectors and 4xRCA Adapters Black,4pcs Bullet Camera System In terms of working withoutUnboxing Video About This Item {Wide Compatibility} The BNC cable is compatible with all brand surveillance dvr camera and cctv camera security system, including 960H 720P 960P 1080P 3MP 4MP 5MP resolutions, as well as AHD, CVI, and TVI formats. {Durable Quality} The RCA extension cable is made of premium pure copper material, providing lower resistivity and better electrical conductivity, extends its lifespan and ensures durability. {Versatile Use}