Extron One USB 2.0 Type-A Female to USB Type-B Female Adapter (part number 70-383-21) — the white version of Extron's single-space MAAP USB barrel, now retired from the Extron line and held by Ampronix for matching and replacement work.

Mechanically this is a pass-through, not an active device. One USB Type-A female opening faces one way, one USB Type-B female opening faces the other, and the barrel itself is reversible — which of the two shows at the front of the plate is decided during installation, not at the time of order. Because the module is passive, there is nothing to power, nothing to configure and nothing to fail electrically.

Key Capabilities

• USB Type-A female to USB Type-B female barrel on a mountable metal plate
• White finish, listed by Extron against part number 70-383-21
• Reversible — present the Type-A or the Type-B end at the plate face
• Extron Barrel/Adapter module in the single-space MAAP size
• Retired part number, useful for colour-matched spares in existing plate runs
• Fits Extron interfaces, MAAP frames and other MAAP-ready products

Where It Is Used

MAAP positions turn up in wall plates, conference table boxes, lecterns, floor boxes and rack plates. A white barrel of this kind is normally being bought to complete or repair an array that already exists — a lectern plate missing its USB position, or a spares kit for a classroom estate built out in white hardware.

Specifications at a Glance

• Signal: USB 2.0
• Connectors: one USB Type-A female to one USB Type-B female
• Module type: Barrel/Adapter
• Module size: single space (MAAP)
• Finish: white

Extron publishes no plate dimensions, weight or warranty term for this module, so this listing quotes none. Extron offers custom engraving if the position needs labelling.

Also listed as One-USB-2.0-Type-A-Female-to-USB-Type-B-Female-Adapter, Extron part number 7038321.