Cable gender changer DELOCK 67191 — USB header 19-pin to 20-pin terminal block, black/green

DELOCK 67191 is a compact cable gender changer that converts a 19-pin USB header to a 20-pin screw-type terminal block. Designed for desktop and embedded systems, this adapter enables connection of bare wires or temporary test leads to a motherboard or controller USB header. The unit is supplied in a black housing with a green terminal block and is intended for applications where converting between header formats or providing a simple, removable wire connection is required.

Advantages

The adapter provides a straightforward mechanical conversion from a 19-pin USB header to a 20-pin terminal-style interface without altering signal routing. Its screw-terminal design allows secure clamping of individual wires for test or industrial use. The compact form factor minimises space requirements inside chassis or test rigs and the rigid connector ensures stable electrical contact during temporary setups.

Suitable for

• Connecting bare wires to a 19-pin USB header for testing and diagnostics
• Temporary connections in development and prototyping environments
• Embedded systems where a terminal block interface is required
• Industrial control panels and equipment requiring removable wire terminations

Key specifications

• Input interface: 19-pin USB header (female)
• Output interface: 20-pin straight screw-terminal block
• Mounting style: inline cable/adapter connection for headers
• Wire termination: screw clamp terminals for bare conductors
• Colour: black housing with green terminal block
• Quantity: single piece adapter

How to use

Align the adapter’s 19-pin female connector with the corresponding 19-pin USB header on the motherboard or controller and press gently until seated. Strip an appropriate length of insulation from each wire and insert the bare conductor into the matching terminal hole on the 20-pin block. Tighten the screw terminals to secure the wires, ensuring firm but not excessive torque to avoid conductor damage. Verify pin mapping and signal assignments before powering the system to prevent incorrect connections.

Recommendations

Use the adapter for short-term test connections and prototyping; for permanent installations consider using properly rated terminal blocks or shielded cabling according to system requirements. Observe ESD precautions when handling motherboard headers and avoid routing power-carrying conductors through terminals not designed for the expected current.