Based on this product's specifications, here are some alternatives and similar models
DELOCK DC Power Cable Connector 5.5 x 2.1 mm Female to Female with M20 x 1.5 mm Thread
Summary description:
The DELOCK DC cable connector features a 5.5 x 2.1 mm female to female interface, designed for secure power transmission. Equipped with an M20 x 1.5 mm thread, it is ideal for panel mounting in industrial or custom electronic enclosures. This robust connector ensures a reliable connection for DC power supplies, providing a professional solution for cable management and equipment integration in various technical applications.