1. Cable distance: Up to 2000ft transmitter-receive UTP cat 5E or better. Point to point transmission of real-time PAL / NTSC or SECAM CVBS video signal 2. Video frequency response: DC TO 6 MHz 3. Common-mode / differential-mode reiection: 15KHz to 5KHz, 55dB typical 4. Line impedance: female / male BNC 75ohms, CAT5 line, terminal 100ohms 5. Wire type: One unshielded twisted pair 24-16 AWG (0.5-1.31mm), category type cat 5 or better. Impedance 100+/-20ohms 6. DC loop resistance 52ohms per 1000ft (18ohms per 100m) 7. Differential capacitance 19pF/ft max (62pF/m max) 8. Power supply: No external power required 9. Dimensions: 10 x 5.5 x 2.5cm

http://olla.gr/4-ch-utp-passive-balun-transceivers/