The HMS-16APR is a rack-mounted multi-switch specifically designed for head-end applications. The switch generates the voltage required for powering a dual LNB (13 & 18 volts). It also provides amplification to help overcome the insertion loss of the 16 outputs. LNB Power: 13V, 18V. Switching Voltage(Rx to Switch): 13/18VDC. Power Requirements: 24VDC, 600 mA Center + (AC to DC Transformer Included). New and Used Items. Items must be unused(upon receiving item) and in the same condition it was received. Items Listed As “For Parts/Not Working” Are Untested And May Work.