Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_57 (model_number VARCHAR, frequency VARCHAR, voltage VARCHAR)
### Question:
Which Model number has a Frequency of 2000mhz and a Voltage of 0.75-1.2?
### Answer:
SELECT model_number FROM table_name_57 WHERE frequency = "2000mhz" AND voltage = "0.75-1.2"