DH VT 510 Monitor AA Includes VT 510 Monitor -11/53 system - - Choose one. - AA model recommended module with 0.5 Mbytes of for US. onboard memory, VT 510 Monitor 20- Mbyte disk drive, RX33 1.2- Base Hardware System includes two Mbyte diskette drive, VT 510 Monitor VT 510 Monitor serial ports for a console terminal disk controller, BA23 rackmount and an additional terminal or printer, two enclosure, US 120-V power cord, 25-foot RS423 cables with MMJ and Englishlanguage connectors, and two VT 510 Monitor -A adapters documentation and installation (VT 510 Monitor to 25 pin). diagnostics, 120 V