Procab Keystone USB 2.0 A to 4-pin Terminal Block Adapter (panel mount)

The Procab Keystone USB 2.0 A to 4-pin Terminal Block Adapter (panel mount) is a keystone-style interface that converts a standard USB 2.0 Type A connection to a 4-pin screw terminal block suitable for panel or wall-plate installation. It provides a compact, easily mountable solution for terminating USB data and power lines in custom enclosures, control panels, AV racks, and other installations where direct wiring is required. The adapter preserves the USB 2.0 signal pairs and power conductors while offering a robust mechanical mounting for a finished panel appearance.

Advantages

This adapter offers a space-saving panel-mount keystone format that fits standard keystone wall plates and panels, simplifying integration into existing installations. The screw terminal block allows secure and tool-accessible termination of individual conductors without soldering, making on-site wiring changes straightforward. The product supports USB 2.0 signal and low-voltage power lines, enabling direct connection of data lines and 5 V power in compatible systems. Durable construction and standardized keystone dimensions ensure reliable mechanical retention in panels and stable electrical contact for typical USB 2.0 use cases.

Suitable for

• Integrating USB 2.0 signal and power lines into AV racks and control panels
• Custom wall-plate or keystone panel installations requiring direct cable termination
• Prototyping or temporary field wiring where screw terminals are preferred over soldering
• Low-voltage USB data connections in industrial or kiosk installations

Key specifications

• Connector conversion: USB 2.0 Type A female to 4-pin screw terminal block
• Mounting style: Keystone-format for panel or wall-plate installation
• Signal support: USB 2.0 data pairs (D+ / D-) and power lines (5 V and ground) suitable for low-voltage USB applications
• Termination: Removable/accessible screw terminals for individual conductors
• Material and finish: Rugged housing with standard keystone dimensions for secure insertion

How to use

Install the adapter into a compatible keystone wall plate or panel cutout until it snaps into place. Strip the cable conductors to the recommended length, then insert each conductor into the corresponding screw terminal and tighten the screws to secure the wires. Connect a USB Type A cable to the adapter's female USB port for external device connection. Verify wiring matches USB pinout conventions (D+, D-, VBUS, GND) and ensure the system is powered down when making terminations to avoid short circuits. After wiring, test data transfer and power delivery with appropriate USB devices.

Usage recommendations

Use shielded twisted-pair wiring for the USB data lines where possible and keep data conductors separate from high-voltage or noisy power cables. Ensure screw terminals are tightened to a firm but not excessive torque to prevent conductor damage. Limit use to USB 2.0 speeds and low-voltage applications consistent with USB specifications; do not use for high-current or mains-voltage connections.