Based on this product's specifications, here are some alternatives and similar models
Powercord ACT C14 to C21 IEC60320 red 1.5 m, 250 V 10 A
Summary description:
ACT power cord with IEC60320 C14 male to C21 female connectors in red, 1.5 m length. Rated for 250 V and 10 A, suitable for connecting compatible IT equipment, servers, PDUs and power supplies that use C14/C21 interfaces. Flexible cable for reliable AC power delivery in data centers, server rooms and rack installations.