2PCS Allowen Security (1 to 4) DC Power Supply Splitter Cable 12V 1 Female to 4 Male 2.1mm Adapter Cable for CCTV Surveillance Security Camera 4Ch Power Supply Splitter Cable for Security Cameras 1 Female & 4 Male Adapter; Input & Output 12VDC Jacket material: PVC; Length: 40CM; Plug Diameter: 5.5 mm outer, inner 2.1 mm Convenient and cost effective way to power up 8 cameras with 1 power adapter Package included: 2*1 to 4 way 12V DC Plug