Standard_DT4as_v7 is an Azure VM size with 4 vCPUs. In East US it costs $0.173 per hour on demand ($126.29 per month) for Linux. Spot capacity is about $0.0346 per hour. It is sold in 7 regions.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.