All-Country DC 9 V/1.7 A Power Adaptor with Daisy-Chain Connectors, Jumper Cables and All-Country Mains Adaptors. The PSU-HB-ALL provides a more than generous 1.7 Amps of current for both your analog and digital devices. That’s more than enough power to handle up to 20 FX pedals, your keyboards – and practically anything else you’ve got that runs on 9 V DC.