Check the listing for details. Night Owl OEM Power Supply Most 4/8/12/16 Channel Night Owl DVRs (not NVR's) UL. Condition: New. Listed at 11.99 USD. 1pcs DC 12V 2A Power Supply Plug US wtih UL ListedModel: CS-1202000DC Connector Size: 5.5mm x 2.1mmFCC, UL certificate, WEEE, RoHS. 12 Volt 2 Amp Power Supply that came brand new with a Swann DVR and was not used. This will work with most Night 4/8/12Channel DVRs, and some 16 Channel DVRs. If you are not sure feel free to ask. This does not have any Night Owl branding on it, but this is what Swann uses directly from the factory. Will also work on a lot of security cameras. Input : AC110-240V 50-60Hz. Output: DC 12V/3A DC Connector Size: 5.5mm/2.1mm. DC Line Length: 1.2meter. Certficate: FCC, UL (UL number:E257074), cUL, RoHS, WEEE. Efficiency Level: V. Application 1 CCTV SECURITY SYSTEM: CAMERA, DVR, NVR, IPC 2, LED STRIPS 3, WIRELESS ROUTER, ADSL CATS, HUB SWITCHS 4, Audio/Video power supply 5, other various application. Bulk Packaging - Came brand new with Night Owl DVR and was never used.