CREATE TABLE table_name_71 (digital_analog_signal VARCHAR2, available_interface VARCHAR2, retail_name VARCHAR2)

What is the Digital/analog signal with an Available interface with pci express, with Retail name with all-in-wonder x600 pro?
SELECT digital_analog_signal FROM table_name_71 WHERE available_interface = "pci express" AND retail_name = "all-in-wonder x600 pro"
SELECT "digital_analog_signal" FROM "table_name_71" WHERE "all-in-wonder x600 pro" = "retail_name" AND "available_interface" = "pci express"