Based on this product's specifications, here are some alternatives and similar models
InLine C13 to C14 power cord extension 1.8m with ETL certification for US use
Summary description:
InLine power cord extension featuring a C13 female coupler and a C14 male coupler with a length of 1.8 meters. Equipped with ETL certification specifically designed for use in the US market. Ideal for extending server, monitor, and IT equipment power connections securely and efficiently.