How many Sumup Air / Solo can I connect at the same time?

[GWR-March]

Is it possible to use a Sumup device for each checkout?
Does anyone know how many devices can be connected to a cash register or a shop at the same time? 

[Shinjin]

Hello,

We recommend having at any given time only one card reader connected to the POS device.

For more details, you can try asking Sumup customer support.