Question: What is the intro date for the interface that equals PCI?
SQL: SELECT "Intro Date" FROM "1-29778616-1" WHERE "Interface" = 'PCI';

Question: What is the intro date for the throughput of 16 Mbit/s?
SQL: SELECT "Intro Date" FROM "1-29778616-1" WHERE "Throughput" = '16 Mbit/s';

Question: How many intro dates have the price of 686€?
SQL: SELECT COUNT("Intro Date") FROM "1-29778616-1" WHERE "Price" = '686€';

Question: What is the price for the manufacturer LETech?
SQL: SELECT "Price" FROM "1-29778616-1" WHERE "Manufacturer" = 'LETech';

Question: What is the price (usd) for the model PQ32MU?
SQL: SELECT MIN("Price (USD)") FROM "1-29778616-1" WHERE "Model" = 'PQ32MU';

Question: Who is the manufacturer whose intro date is 2006 and their throughput is 4 Mbit/s?
SQL: SELECT "Manufacturer" FROM "1-29778616-1" WHERE "Intro Date" = '2006' AND "Throughput" = '4 Mbit/s';