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_6311 ( "Model" text, "Codename" text, "Capacities (GB)" text, "NAND type" text, "Interface" text, "Form factor" text, "Controller" text, "Seq. read/write MB/s" text, "Rnd 4KB read/write IOPS (K)" text, "Introduced" text )

### Question ###
What form factor has capacities at 60/120/180/240?

### Accurate SQL ###

SELECT "Form factor" FROM table_6311 WHERE "Capacities (GB)" = '60/120/180/240'