... operate the system together with the software flexible,we offer free software;6,Support RS-232 serial ports remote control;7,Support multi ... maintance, if one unit is going bad, only replace it with a new one; 13. Accessories:1 in 4 out VGA ... cable,RJ 45 cable,Power cable,Remote controller,Software. 46-inch DID Spliced LCD Video Wall screen with LED Backlight and 1,920 x ...