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Home / MP3/MP4 Stands / 3439-2 Connector [CONN KEYING PLUG OR POLARIZAT]
MP3/MP4 Stands

Attributes

Brand -
Category 3C Digital Accessories / MP3/MP4 Stands
Origin -
Part Number 3439-2
Manufacturer Generic OEM
Component Type Connector Keying Plug
Function Polarization and Alignment
Material High-Grade Thermoplastic
Color Black
Compatibility Standard MP3/MP4 Dock Interfaces
Package Quantity 1 Unit
Weight 2 grams
Condition New Original

6 reviews

A

Anonymous

Mar 25, 2026

Rating: 5/5

Fast shipping

Arrived two days earlier than expected. Great for keeping stock of small replacement parts.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect fit for repair jobs

Exactly what I needed to fix a broken dock connector on an older MP4 player. The polarization key aligns perfectly.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Saved my old player

My stand wouldn't hold the device straight anymore. This keying plug fixed the alignment issue immediately.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Genuine part

Looks and feels like an original component. No issues with installation or fitment.

A

Anonymous

Mar 09, 2026

Rating: 4/5

Good quality plastic

The material feels durable and not brittle. Shipping was fast as described. One star off because the packaging was a bit loose.

A

Anonymous

Mar 08, 2026

Rating: 3/5

Works but tight fit

It does the job of polarizing the connection, but it was a very tight squeeze to install. Had to be careful not to crack it.

5 FAQ

Q: What is the return policy if it doesn't fit?

A: We offer a 30-day return window for unused items in their original condition. Please contact our support team to initiate a return.

Q: Is this compatible with all MP3 player stands?

A: This connector is designed for standard interfaces found in many MP3/MP4 docks, but please verify your specific model's pin layout before purchasing.

Q: Does this come with adhesive backing?

A: No, this is a mechanical keying plug intended to snap into the housing or connector block. It does not include adhesive.

Q: Can I buy this in bulk?

A: Yes, we offer bulk pricing for orders over 50 units. Please reach out to our sales department for a custom quote.

Q: Is this part RoHS compliant?

A: Yes, all our electronic components and connectors meet current RoHS compliance standards.

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