PSI Integration Inc, based in Campbell, California is eyeing the PowerBooks for building business, and has expandable RAM cards and an internal send-and-receive facsimile-data modem for the new notebooks. PowerMemory expands memory to 8Mb. PowerModem is the first send-and-receive internal facsimile and data modem designed for the PowerBook. PowerModem is a Hayes-compatible, 9,600bps/2,400bps data internal modem at $300. The TravelCOM external data modem also workls with all three PowerBooks – the Hayes-compatible 9,600 bps V32 data modem is $800. The PowerMemory 2Mb fixed RAM card is $400. The 2Mb flexible RAM card is $500, 4Mb flexible RAM card is $1,000; all now.