Gold-Plated Brass MMCX Right-Angle Coaxial Connectors
Electronic Component (RF Connector/Hardware) · Generic manufacturer, typically specialized in telecommunications or audio hardware components from industrial hubs such as Shenzhen, China.
Pattern: Standard MMCX (Micro-Miniature Coaxial) series; industrial specification compliant for RF and audio applications.
Type
Electronic Component (RF Connector/Hardware)
Maker
Generic manufacturer, typically specialized in telecommunications or audio hardware components from industrial hubs such as Shenzhen, China.
Material
Base metal is high-grade machined brass; the yellow hue indicates a gold-flash or gold-plate finish (typically 1-3 microinches thick). Internal insulation is PTFE (Teflon), visible as the white core.
Dimensions
Estimated 10-12mm in length with a connector diameter of approximately 3.5mm. Weight is negligible, likely less than 0.5 grams per piece.
Description
These are not silver decorative items, but rather specialized gold-plated electromagnetic connectors. Known as MMCX connectors, they are the standard interface for detachable high-fidelity earphone cables. Their gold-over-brass construction ensures the signal remains clear by preventing the corrosion common in silver-plated or copper alternatives.
Key Features
Snap-lock interface, right-angle geometry, PTFE insulation, and gold-plated conductivity surfaces.
Material & Composition
Base metal is high-grade machined brass; the yellow hue indicates a gold-flash or gold-plate finish (typically 1-3 microinches thick). Internal insulation is PTFE (Teflon), visible as the white core.
Finish & Decoration
Polished industrial gold plating. No artistic decoration; finish is purely functional to provide low contact resistance and prevent oxidation of the base brass.
Hallmarks & Stamps
None visible. Industrial components of this size typically lack stamps; quality is verified through SKU and electrical testing rather than silversmith hallmarks.
Construction Details
Precision CNC machined brass body with a press-fit dielectric (PTFE) and center pin contact. Right-angle (90-degree) orientation with a threaded or jagged external retention ring.
Functional Features
Snap-on coupling mechanism allowing for 360-degree rotation. Designed for high-frequency signal transmission (up to 6 GHz) and common in high-end detachable IEM (in-ear monitor) cables.
Handle & Grip Details
Ribbed/jagged texture on the connector head intended for grip during assembly or to provide a secure friction fit within a housing.
Craftsmanship Details
Machine-precision tolling. The quality of the knurling and the concentricity of the center pin indicate standard industrial-grade manufacturing.
Authentication Indicators
The presence of a white PTFE insulator and the characteristic 'toothed' snap-ring on the connector head confirms these as MMCX standard hardware rather than jewelry or silver items.
Origin & Manufacturing
Likely manufactured in China or Taiwan. Produced through high-volume automated machining processes for the global electronics market.
Era & Period
Late 20th to early 21st century (Contemporary Industrial Era). These surged in popularity during the 2010s with the rise of the Audiophile 'IEM' market.
Age Estimate
Modern (produced within the last 5-10 years).
Cultural Significance
Represents the shift toward modularity in consumer electronics, where users expect to replace or 'roll' cables to customize their listening experience.
Condition Notes
Appear to be in New Old Stock (NOS) condition. Gold plating is bright and intact with no visible signs of solder residue on the pins or oxidation on the brass.
Value Estimate
Nominal market value; typically sold in bulk quantities. Retail price for a pair is approximately $2.00 - $8.00 USD depending on the manufacturer.
Care & Maintenance
Clean contacts with isopropyl alcohol (90%+). Avoid frequent unplugging to prevent loosening of the snap-ring; do not polish with silver cleaner as it will strip the thin gold plating.
Similar Pieces
MCX connectors (slightly larger), SMA connectors (threaded), and 2-pin IEM connectors (non-coaxial). None are silver items in the traditional sense.
Interesting Facts
The MMCX standard was originally developed for cellular phones and wireless GPS antennas before becoming the 'gold standard' for the high-end audio community.