Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_93 (channels VARCHAR, clock_rate__mhz_ VARCHAR, bandwidth__mb_s_ VARCHAR)

### Question ###
Clock rate (MHz) smaller than 400, and a Bandwidth (MB/s) of 1420 has what channels?

### Accurate SQL ###

SELECT channels FROM table_name_93 WHERE clock_rate__mhz_ < 400 AND bandwidth__mb_s_ = 1420