Steel Interface Box 3x5.5x1.25 DB25 DB9 Serial Parallel Electronic Test

Steel Interface Box 3x5.5x1.25 DB25 DB9 Serial Parallel Electronic Test Enclosure

This is a compact steel interface box measuring 3 x 5.5 x 1.25 inches, fitted with a DB25 (25-pin) female connector on one end and a DB9 (9-pin) female connector on the opposite end. The enclosure is fabricated from steel with a teal-gray finish and is designed to house interface circuitry or act as a breakout/adapter housing between serial and parallel signal lines. No manufacturer markings are visible on the unit.

Specifications & What's Included

• Enclosure dimensions: 3 x 5.5 x 1.25 inches
• Enclosure material: Steel with teal-gray painted finish
• Connector 1: DB25 female (25-pin D-sub) — mounted on one short end panel
• Connector 2: DB9 female (9-pin D-sub) — mounted on opposite short end panel
• Two small screw-terminal posts visible adjacent to DB25 connector
• Form factor: Compact benchtop/desktop
• No cables included
• No visible brand or manufacturer markings

Applications

Steel interface boxes of this type are commonly used in electronic test, instrumentation, and industrial automation environments as junction or breakout enclosures between serial (RS-232, RS-422) and parallel interface lines. The combination of a DB25 and DB9 connector makes this suited for signal routing, cable adapter assemblies, or custom interface wiring between instruments, controllers, and peripheral devices. These enclosures are a practical solution in lab bench setups, test fixture rigs, and legacy equipment integration where a rugged, shielded housing is needed to protect internal interface circuitry. The compact footprint fits neatly on a bench or can be integrated into a test rack or panel assembly.