速卖通可参考标题： Portable 2x8 JS-MS28 Satellite Signal Multiswitch 950-2150MHz LNB Voltage Selected Switch Low Loss LNB Receiver Multiswitch Features: 2 SAT signals input is supplied 8 users simultaneously. High isolation, low insertion loss, very durable. Applicable to multi-satellite and multi-receiver usage. IC in switch distribute and control power supply to LNB , reducing energy consumption. 13/18V supplied by satellite receiver through coaxial cable to switch corresponding port. Capable of connecting two SATV signals simultaneously, which is switched through 13/18V. Descriptions: Zinc alloy crust Easy installation without any other program needed Power supplied from Receiver Specifications: Color: silver LNB frequency range: 950-2150MHz Insertion loss: 5dB Return loss: 10dB Isolation: 26dB Switching voltage: 13~18V DC current consumption: 30mA Max. DC current to LNB: 500mA Input and output: 75Ω, F type connector Model: JS-MS28 Package included: 1 x JS-MS28 Multiswitch Notes: Please allow 0-2mm error due to manual measurement, thanks for understanding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you!