CREATE TABLE table_611 ("Model number" TEXT, "Printer ports" TEXT, "Network ports" TEXT, "Network protocols" TEXT, "Firmware" TEXT, "Notes" TEXT)

What is the type of the printer ports included in the EX Plus3 model number?
SELECT "Printer ports" FROM table_611 WHERE "Model number" = 'EX Plus3'
SELECT "Printer ports" FROM "table_611" WHERE "Model number" = 'EX Plus3'