CREATE TABLE table_71290 ("Device" FLOAT, "Device type" TEXT, "Capacity [MB]" TEXT, "Avg seek time [ms]" TEXT, "Avg rotational delay [ms]" FLOAT, "Avg transfer rate [kB/s]" FLOAT)

What is the smallest transfer rate for a 3243 device?
SELECT MIN("Avg transfer rate [kB/s]") FROM table_71290 WHERE "Device" = '3243'
SELECT MIN("Avg transfer rate [kB/s]") FROM "table_71290" WHERE "Device" = '3243'