The BOSS RPW-7 is the Power Supply Unit specially designed for the BOSS Micro Studio Series. It can supply 9V DC. maximum of 700 rnA output power to the connected units. The RPW-7 and any of the Micro Studio Series can be mounted on a standard 19" rack IEIA-1 U) by using the optional Rack Mount Adaptor RAD-10. Also. the RPW-7 can be used with the PSA Adaptor type BOSS Compact Series.