Check the listing for details. PDI SAT Fixed Channel Modulator 50121CM - Various Channels. Color: Black, Condition: Used. Listed at 16.00 USD. PDI Fixed Channel Modulator 50121CM – Various Channels Available All have been pulled from a working system and are fully functional. Might show minor wear and tear.VIEW ALL PHOTOS FOR DETAILS AND OVERALL ITEM CONDITION. PICTURES ARE OF THE ITEM YOU WILL RECEIVE. We make every effort to accurately describe the item, the measurements and the condition it is in. We also try to note any defects or problems with our items but we strongly suggest you look at the pictures before you purchase. All items are sold as is. We do not represent or make any claim regarding any manufacturer warranties. All items are carefully packed and properly protected for shipment. We use several different carriers and choose the most economical for the item based on the estimated handling and transit time. IN ORDER FOR US TO PROVIDE YOU WITH GREAT CUSTOMER SERVICE, PLEASE CONTACT US FIRST WITH ANY QUESTIONS OR PROBLEMS. THANK YOU.