PoOnHand will send your inquiry to all specialized distributors.
Solderable PC Breadboard 1 Sided PCB Matches 830 Tie Point Breadboard With Power Rails
Descriptions of BusBoard BR1 provided by its distributors.
Prototyping Products Solderable Breadbrd 1 sided PCB
Mouser
Conn Board Stacker HDR 6 POS 2mm Solder ST SMD
Verical
Solderable PC Breadboard 1 Sided PCB Matches 830 Tie Point Breadboard With Power Rails
Jameco