USB power on laptops can be hit and miss.
More so with Macs !
USB hubs are usually a better choice but should be POWERED from its own supply of adequate rating for the amount of ports it has...eg a 4 port hub PSU should be able to supply 4 x 500mA
USB power on laptops can be hit and miss.
More so with Macs !
USB hubs are usually a better choice but should be POWERED from its own supply of adequate rating for the amount of ports it has...eg a 4 port hub PSU should be able to supply 4 x 500mA