Network · Exact Product Example

Cisco SFP-H10GB-CU1M — passive rack DAC

Join nearby supported SFP+ ports with a passive copper direct-attach cable.

Integral SFP+ end at port Aend A

Integral SFP+ end at port Bend B

Bidirectionaldirection evidence

Passiveconversion

Endpoint map

Start with what is physically represented

Two-way direct-attach Ethernet path between compatible SFP+ ports; neither end is a detachable LC optical transceiver.

Integral SFP+ end at port A reference →Integral SFP+ end at port B reference →Compare references with these ends →Canonical cable/adapter note →

Choose for the actual job

Join nearby supported SFP+ ports with a passive copper direct-attach cable.

ConstructionDocumented

Passive 30AWG twinax copper with integral SFP+ ends.

Evidence: C987A

Fallback / lower modesConditional

1Gb/s fallback is not established here; match both ports, firmware and the exact PID.

Evidence: C987A

Environment and handlingConditional

Rack interconnect use; maintain connector clearance and use exact routing/handling guidance. Outdoor or building-route approval is not established.

Evidence: C987A

Worked selection example

For two documented compatible SFP+ ports within the 1m reach, compare their support matrices for this PID/version before choosing the passive DAC.

Common confusion: A passive DAC is not an RJ45 patch cord and cannot be plugged into a detachable LC optical module.

Next check: Capture both chassis/port/OS versions and PID/version; verify exact platform support rather than extrapolating from a broad chassis list.

Source-documented example; no hardware test

Capability ledger

Six questions kept separate

DataDocumented

10Gb/s SFP+ direct-attach twinax assembly; generic SFP cage fit does not establish platform support.

Evidence: C987A

Power / chargingDocumented

Cisco lists 0.1W consumption for this PID. This is module/cable operating power, not PoE delivered to the other device.

Evidence: C987A

VideoNot Applicable

No native video mode represented.

ConversionPassive

Passive 30AWG twinax copper with integral SFP+ ends.

Evidence: C987A

Length / reachDocumented

1m exact PID. The source's qualification footnote says version -02 and later for the broad platform qualification statement.

Evidence: C987A

Markings / certificationConditional

Read full PID and hardware version. Bail color is not an interchangeable-cable rule.

Evidence: C987A

Explicit unknowns

No physical sample, electrical/optical measurement or hardware interoperability test was performed.
Capture both chassis/port/OS versions and PID/version; verify exact platform support rather than extrapolating from a broad chassis list.

Source boundary

Why this profile says what it says

Back to first citation ↑

Source records: S1107

C987ASource checked · pending review

10Gb/s SFP+ direct-attach twinax assembly; generic SFP cage fit does not establish platform support. Cisco lists 0.1W consumption for this PID. This is module/cable operating power, not PoE delivered to the other device. Passive 30AWG twinax copper with integral SFP+ ends. 1m exact PID. The source's qualification footnote says version -02 and later for the broad platform qualification statement.

Scope: Cisco SFP-H10GB-CU1M, 1m, version -02 qualification footnote · review due 2027-01-21

Cisco · Cisco 10GBASE SFP+ Modules Data Sheet

SFP-H10GB-CU1M, SFP-H10GB-ACU7M, SFP-10G-AOC3M and optical example. Same underlying document is one source, not independent corroboration.

Open source ↗

Twinax and AOC sections; Table 3 exact cables; Table 8 power; LC/PC-UPC note; SFP-10G-SR-X and Table 3 wavelength/reach · SFP-H10GB-CU1M, SFP-H10GB-ACU7M, SFP-10G-AOC3M and optical example. Same underlying document is one source, not independent corroboration.

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 1 scoped claims · 0 sources with inspection/access flags.

Page scope: exact-product-example

Assessment 2026-10-23 · earliest scheduled source review 2027-01-21. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 1 source scopes, access limits and dates

S1107 · Cisco 10GBASE SFP+ Modules Data Sheet

Cisco · Manufacturer / product-owner domain · inspected 2026-10-23 · due 2027-01-21

Within inspection window

Scoped support: SFP-H10GB-CU1M, SFP-H10GB-ACU7M, SFP-10G-AOC3M and optical example. Same underlying document is one source, not independent corroboration.

Not established / limitations: SFP-H10GB-CU1M, SFP-H10GB-ACU7M, SFP-10G-AOC3M and optical example. Same underlying document is one source, not independent corroboration.

Locator: Twinax and AOC sections; Table 3 exact cables; Table 8 power; LC/PC-UPC note; SFP-10G-SR-X and Table 3 wavelength/reach

Trace 1 claims to their source records

C987A · P807

Claim scope: Cisco SFP-H10GB-CU1M, 1m, version -02 qualification footnote

Source links: S1107 · Evidence trail →

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.