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_43730 ( "Internet Plan" text, "Downstream" text, "Upstream" text, "Bandwidth Included" text, "Price" text )

### Question ###
What is the price of the internet provider that has an upstream rate of 256 kbit and a downstream rate of 512 kbit?

### Accurate SQL ###

SELECT "Price" FROM table_43730 WHERE "Upstream" = '256 kbit' AND "Downstream" = '512 kbit'