Used item: Nippon Antenna SRB5PS This is a DC15V booster power supply. It has a capacity of 500mA, so it supports CATV boosters, UHF/BS/CS boosters, and V-ONUs for optical TV. However, because the supported frequency is 2602MHz, it does not support BS8K. Also, it cannot be used with AC-standard boosters such as AC30V or AC24V. Please note that this is a used item and is sold as-is. Please purchase only if you agree to this condition. As a small bonus, I will include a series unit (WTAF77V2H, non-conductive). Although it is new, it may have dust on it because it has been stored in a warehouse for a long time. You will need a mounting frame that fits the wall plate for installation, so please prepare it separately. This is also sold as-is.