DeLOCK 66991 wire connector RJ45/RJ48/RJ50 Black Male/Female

The DeLOCK 66991 wire connector is a compact male/female adapter for RJ45, RJ48 and RJ50 plugs. It ensures that the contacts of connected RJ plugs (including RJ12, RJ11, RJ10 and similar) are wired directly through the adapter, making it suitable as a port saver and for use with barcode scanners, uninterruptible power supplies and other devices that accept RJ-style connectors.

Advantages

The adapter provides direct contact mapping between different RJ connector types, reducing wear on device ports and allowing cross-compatibility between RJ45, RJ48, RJ50 and smaller RJ plugs. Its black housing and compact dimensions (18.5 mm × 44.5 mm × 16.5 mm) make it unobtrusive and easy to install in tight spaces. The male/female configuration simplifies inline connection without modifying existing cables.

Suitable for

• Protecting device ports from frequent plug cycles (port saver)
• Connecting barcode scanners with RJ-style plugs
• Integrating RJ11/RJ12 lines with RJ45/RJ48/RJ50 sockets
• Use with uninterruptible power supplies and similar equipment

Key specifications

• Brand: DELOCK
• Model / MPN: 66991
• EAN: 4043619669912
• Connector types: RJ45 / RJ48 / RJ50 (male/female adapter)
• Compatible with: RJ12, RJ11, RJ10 and other RJ connectors
• Colour: Black
• Dimensions (W × D × H): 18.5 mm × 44.5 mm × 16.5 mm

How to use

Insert the male end of the DeLOCK 66991 adapter into the device port and connect the required RJ plug to the female end, or vice versa depending on your setup. Ensure the connector is fully seated to achieve correct contact mapping. The adapter requires no additional tools or configuration and functions as a passive inline connector.

Recommendations

For reliable operation, use the adapter in dry, indoor environments and avoid excessive bending or strain on connected cables. Verify connector compatibility (pinout and number of conductors) before use to ensure proper signal or power transmission.