VINTAGE DEC DIGITAL M7826 DVS11 ASYNCHRONOUS, SYNCHRONOUS & ISOCHRONOUS SERIAL LINE TRANSMITTER/RECEIVER MODULE FOR QBUS PDP11 CSS SYSTEMS.  QUITE GOOD COSMETIC CONDITION, CONSIDERING IT'S AGE.  ITEM WAS FULLY FUNCTIONAL WHEN PUT INTO STOCK IN CLIMATE CONTROLLED WAREHOUSE 20+ YEARS AGO,  WORKING UPON ARRIVAL WARRANTY. ITEM WILL BE PROFESSIONALLY PACKAGED, TO ENSURE SAFE SHIPMENT TO YOUR LOCATION.