Night Owl's A-VB-POE-BNC is a pair of passive video baluns which transmits power and video using CAT/RJ45 cables. This is used to convert Ethernet to BNC for security CCTV systems. The A-VB-POE-BNC provides users or installers with the flexibility of using an analog camera on Ethernet cabling. The converter also allows you to efficiently run video and power over a single CAT5 cable giving you the ability to utilize straight network cables to connect your cameras. Key Features: Transmits video and power using CAT5/RJ45 cables; works with most Analog BNC cameras; Use existing Ethernet cabling to transmit video and power. All Night Owl security products come with full technical support 24/7 365 days a year including Bilingual Help Desk.