The desktop power supplies, popularly called the “wedge” due to its distinctive, ergonomically friendly shape, offer a convenient way to convert 12Vdc mobile radio transceivers for use as desktop base stations. They will operate from AC supplies, either 115V or 230V without manual adjustment and output up to 108W (9Amps).  Alfatronix started making these for Motorola radios 12 years ago, now they have 24 varieties for 9 manufacturers.