USG EoC Ethernet Over Coax Adapter Extender Device Pair Passive No Power Required BNC & RJ45 Jacks Send Ethernet Signal 300ft Over Coaxial Cable EoC Ethernet Over Coax Extender Adapter Pair (TWO UNITS TOTAL) Convenient 'Passive' Model = Does Not Require An External Power Source Transfer IP Ethernet Signal Over RG59 RG6 Coaxial Cable Up To 300ft Save Money By Not Having To Run New Cable = Utilize Existing Coaxial Cable For All Of Your IP Ethernet Networking Needs 30 Day No-Questions-Asked Return Policy + 3 Year USA Warranty + Lifetime Customer Support When Purchased From Seller 'Urban Security Group'