E025 · No electrical assignment published

Mini-TOSLINK connector engineering reference

A nominal 3.5 mm optical plug is not an analog TRS assignment. Apple’s general input guidance, Google’s explicit Chromecast Audio output and Hosa’s optical adapter have distinct scopes; the Early 2015 MacBook statement remains digital/analog source wording.

Open field note Source trail

Source checked · no independent review claimed · Fabrication approved: no

Mini-TOSLINK connector — original, not-to-scale identification schematic; drawing review pending — **View** Exterior side studyDepiction Cable-end plugOriginal recognition study · not to scale · independent review pending
Identification schematic only · not to scale · drawing review pending. No engineering drawing is published for this profile.

Contact count

Not asserted

optical interface; electrical cable-contact count not applicable

Mating boundary

Shape is not the verdict.

Documented Mini-TOSLINK optical end to an explicitly optical-capable socket; a 3.5 mm opening alone is insufficient.

Orientation

How to read this profile

No contact numbering or mechanical viewing diagram is published. Rotational mating behavior is not established in this source batch and is stored as unknown, not false. Input/output signal direction is a different question.

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Dimensions / axis	3.5 mm Nominal optical plug diameter (Mini-TOSLINK optical form)S845Qualified exact source facts only; counterpart, mounting-acceptance, cable, port, termination and assembly context remains separately labelled in variant_notes. Consumer identification / documented standard or product class only
Manufacturer	CLIFF (FM65215)S533Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example FM65215: TOSLINK-to-3.5mm optical cable assembly. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Do not derive electricalTRS/TRRS contacts from the round optical end, or infer photograph cable length.
Series	TOSLINK optical leads (FM65215)S533Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example FM65215: TOSLINK-to-3.5mm optical cable assembly. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Do not derive electricalTRS/TRRS contacts from the round optical end, or infer photograph cable length.
Exact part / implementation	FM65215 (FM65215)S533Separate exact examples; retain each value’s source, role, axis and part scope. Exact named example FM65215: TOSLINK-to-3.5mm optical cable assembly. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Do not derive electricalTRS/TRRS contacts from the round optical end, or infer photograph cable length.

Not recorded: Connector role, Mounting, Coupling / latch, Keying / polarization, Shell / form, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits

No connector mating tolerances, insertion depth or fabrication dimensions have been verified.
A module PCB pin map or a combination socket’s analog terminals must not be imported as optical cable contacts.
Check exact output/input roles, receiver mode and audio decoding; a matching connector does not prove them.
No physical sample or hardware connection has been tested.
Retained dimensions context (excluded from normalized contact/body field): 1500 mm / complete named cable assembly length. Exact named example FM65215: TOSLINK-to-3.5mm optical cable assembly. Exact example only; no universal geometry, electrical compatibility, fabrication approval or wiring instruction. Do not derive electricalTRS/TRRS contacts from the round optical end, or infer photograph cable length. Sources: S533: Issue5 p.2 item row and specifications; also p.1 FM65010 adaptor illustration

Report a correction to these facts →

Unknowns stay unknown.

No connector mating tolerances, insertion depth or fabrication dimensions have been verified.
A module PCB pin map or a combination socket’s analog terminals must not be imported as optical cable contacts.
Check exact output/input roles, receiver mode and audio decoding; a matching connector does not prove them.
No physical sample or hardware connection has been tested.

Your next step

Use the detail without guessing past its limits.

Read the connector field note Recognition clues and practical checks.Work through a connection Keep exact equipment and cable requirements separate.

Source trail

Claims and sources

C025Bsource checked

Apple distinguishes a metal 3.5 mm analog plug from a 3.5 mm optical plug, and describes a TOSLINK miniplug adapter or optical lead for optical digital input on some Mac computers.

Apple · Use the ports on your Mac ↗
Learn about the ports on your Mac: Analog audio out and Audio in table rows. · General guide, not an exact-model optical port inventory. Optical input on some Macs must not be treated as output support or as support on every headphone socket.

C025Csource checked

Google explicitly lists the Chromecast Audio 3.5 mm jack as providing analog and optical digital audio output.

Google · Chromecast audio specifications ↗
Ports and connectors: 3.5 mm jack with analog and optical digital audio output. · No universal miniplug support, optical input, simultaneous-use guarantee, full codec list or connector mechanical drawing is established by this specification.

C025Dsource checked

Apple lists digital/analog line-out support at the headphone jack of the MacBook Pro (Retina, 13-inch, Early 2015). The wording is preserved without adding a connector pin map or extending it to other models.

Apple · MacBook Pro (Retina, 13-inch, Early 2015) — Technical Specifications ↗
Audio section: 3.5 mm headphone jack and digital/analog line-out support. · The page says digital/analog; it does not itself specify an optical connector geometry, electrical pin map, sample-rate limit or capabilities of later MacBook models.

C025Esource checked

Hosa describes GOP-490 as adapting a male TOSLINK optical cable to a 3.5 mm combo jack, with TOSLINK and Mini-TOSLINK connector labels.

Hosa Technology · GOP-490 Fiber Optic Adapter — Toslink to Mini-Toslink ↗
Product description and connector labels: male TOSLINK optical cable to 3.5 mm combo jack; GOP-490 identity. · Marketing examples such as iMac do not select a model. No pinout, insertion dimensions, direction guarantee, codec decoder, loss budget or universal headphone-jack compatibility is provided.

4 source records support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

4 linked sources · 4 scoped claims · 0 sources with inspection/access flags.

Page scope: No new engineering drawing. Identification assets are not manufacturing drawings.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-05. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 4 source scopes, access limits and dates

S406 · Use the ports on your Mac

Apple · Manufacturer / product-owner domain · inspected 2026-10-07 · due 2027-01-05

Within inspection window

Scoped support: Apple distinguishes metal 3.5 mm analog plugs from 3.5 mm optical plugs and describes optical input on some Mac computers only.

Not established / limitations: General guide, not an exact-model optical port inventory. Optical input on some Macs must not be treated as output support or as support on every headphone socket.

Locator: Learn about the ports on your Mac: Analog audio out and Audio in table rows.

S407 · MacBook Pro (Retina, 13-inch, Early 2015) — Technical Specifications

Apple · Manufacturer / product-owner domain · inspected 2026-10-07 · due 2027-01-05

Within inspection window

Scoped support: Exact Early 2015 13-inch Retina MacBook Pro audio-role wording only.

Not established / limitations: The page says digital/analog; it does not itself specify an optical connector geometry, electrical pin map, sample-rate limit or capabilities of later MacBook models.

Locator: Audio section: 3.5 mm headphone jack and digital/analog line-out support.

S408 · Chromecast audio specifications

Google · Manufacturer / product-owner domain · inspected 2026-10-07 · due 2027-01-05

Within inspection window

Scoped support: Exact Chromecast Audio combination-output role only, not a generic 3.5 mm socket claim.

Not established / limitations: No universal miniplug support, optical input, simultaneous-use guarantee, full codec list or connector mechanical drawing is established by this specification.

Locator: Ports and connectors: 3.5 mm jack with analog and optical digital audio output.

S410 · GOP-490 Fiber Optic Adapter — Toslink to Mini-Toslink

Hosa Technology · Manufacturer / product-owner domain · inspected 2026-10-07 · due 2027-01-05

Within inspection window

Scoped support: Exact GOP-490 optical form adaptation only. No analog/digital signal conversion is represented.

Not established / limitations: Marketing examples such as iMac do not select a model. No pinout, insertion dimensions, direction guarantee, codec decoder, loss budget or universal headphone-jack compatibility is provided.

Locator: Product description and connector labels: male TOSLINK optical cable to 3.5 mm combo jack; GOP-490 identity.

Trace 4 claims to their source records

C025B · P025

Apple distinguishes a metal 3.5 mm analog plug from a 3.5 mm optical plug, and describes a TOSLINK miniplug adapter or optical lead for optical digital input on some Mac computers.

Claim scope: General Mac guide terminology and some-model optical input only; not proof of output support, a socket pinout or every Mac model’s capabilities.

Source links: S406 · Evidence trail → (private workspace)

C025C · P025

Google explicitly lists the Chromecast Audio 3.5 mm jack as providing analog and optical digital audio output.

Claim scope: Exact Chromecast Audio specification only; no optical input, simultaneous-mode behavior or support on unrelated 3.5 mm sockets is inferred.

Source links: S408 · Evidence trail → (private workspace)

C025D · P025

Claim scope: Exact Apple model and source wording only; the specification does not itself establish optical geometry, input capability or later model support.

Source links: S407 · Evidence trail → (private workspace)

C025E · P025

Hosa describes GOP-490 as adapting a male TOSLINK optical cable to a 3.5 mm combo jack, with TOSLINK and Mini-TOSLINK connector labels.

Claim scope: Named optical adapter as a connector-form example only; not evidence that a generic analog headphone jack acquires optical support.

Source links: S410 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.