CREATE TABLE table_name_28 (i_o_bus VARCHAR, sspec_number VARCHAR)

what is the i/o bus when the sspec numebr is sr0n5(l1)?
SELECT i_o_bus FROM table_name_28 WHERE sspec_number = "sr0n5(l1)"
SELECT "i_o_bus" FROM "table_name_28" WHERE "sr0n5(l1)" = "sspec_number"