F1 Visa 221g Administrative Processing

I have applied for f1 visa on 12 Nov 2021, and the VO informed me that my application needs further verification and issued a 221g white form and kept my passport with them, and also didn’t ask for any documents. I am not sure how long it usually takes to process?

It can take from few days to few weeks for further verification from USCIS for whatever the consulate if trying to validate.