Can I use 90w 20v hub ?

how to add additional gekkoscience 2pac stick to cgminer ?do i use the enable device comand. if i do then how?

Ok I got it it's running well. Except only one stick is flashing how do I add second stick?

 [2017-06-16 17:13:51.696] Started cgminer 4.10.0
 [2017-06-16 17:13:52.221] Probing for an alive pool
 [2017-06-16 17:13:52.250] Failed to resolve (?wrong URL) statum+tcp:
 [2017-06-16 17:13:52.324] Found 2 chip(s) on GSD 0
 [2017-06-16 17:14:02.328] Waiting for work to be available from pools.
 [2017-06-16 17:14:52.228] No servers were found that could be used to get work from.
 [2017-06-16 17:14:52.228] Please check the details from the list below of the servers you have i
nput
 [2017-06-16 17:14:52.229] Most likely you have input the wrong URL, forgotten to add a port, or
have not set up workers
 [2017-06-16 17:14:52.229] Pool: 0  URL: stratum+tcp://statum+tcp://us-east.stratum.slushpool.com
:3333  User: fffffack  Password: fffack
[2017-06-16 17:14:52.229] Press any key to exit, or cgminer will wait indefinitely for an alive
pool.
 this is what i got .do i have to do something with pool?

I need Help . I'm on the step when I supposed to compile a final command (it's when i enter gekkoscience 2pac ,user name password, pool and worker I think ) I'm looking for example specifically for 2Pac , I am using raspbien . I would gladly appreciate help. Thanks.