The SSL 1 can be powered via two different connections. One way is via the ‘USB’ port directly from your computer or laptop. This accesses the bus-power on the SSL 1, acting as the simplest way to connect.
Alternatively, SSL 1 can be powered by connecting a 5V power source (such as a phone charger or power bank) to the '5V EXT' port. This is particularly useful when recording with a mobile device, as it no longer needs to supply power to SSL 1 via the 'USB' port.