Nvidia has warned that supply of its RTX 30-series graphics cards will be low for the coming months, with an increase in availability not expected until at least after the first quarter of 2021. Speaking as part of the 19th Annual J.P. Morgan Tech/Auto Forum Conference (transcript available at Seeking Alpha), Nvidia’s chief financial officer, Colette Kress, said that keeping stock levels in line with customer demands had not been possible.