FIELD GUIDESource-led reference
Port & Cable

P807 / Network / Cable / adapter

Cisco SFP-H10GB-CU1M — passive rack DAC

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

Also called Cisco SFP-H10GB-CU1M, 1m, version -02 qualification footnote

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

The useful distinction

Match the complete manufacturer identity, endpoint roles and selected length; a similar shell or cable color is insufficient.

Claim inspection dates: 2026-10-23 · Independent review pending

Cable / adapter note · not an individual product specification

The useful distinction

Understand the requirement.

Join nearby supported SFP+ ports with a passive copper direct-attach cable. [C987A]

Bounded facts, visible unknowns

Specifications and limits

Cisco SFP-H10GB-CU1M — passive rack DAC facts and limitations
Documented task / mode10Gb/s SFP+ direct-attach twinax assembly; generic SFP cage fit does not establish platform support. [C987A]
Construction / lengthPassive 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. [C987A]
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

Passive 30AWG twinax copper with integral SFP+ ends. Rack interconnect use; maintain connector clearance and use exact routing/handling guidance. Outdoor or building-route approval is not established.

Before you connect

What to check

  1. Capture both chassis/port/OS versions and PID/version; verify exact platform support rather than extrapolating from a broad chassis list.
  2. Check condition with power disconnected where the equipment guidance permits; stop for damage, heat or unknown powered connections.
  3. Keep published source support separate from physical test results.
Trace a supported connection class →

Direction and fallback

Two-way direct-attach Ethernet path between compatible SFP+ ports; neither end is a detachable LC optical transceiver. 1Gb/s fallback is not established here; match both ports, firmware and the exact PID.

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.

What to observe next

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

Your next step

Move from the form to the requirement.

Compare this field note See the differences without assuming interchangeability.Work through a connection Choose your task before deciding on a cable.Explore this evidence trail Inspect the claims and their dependencies.

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

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.

Cisco · Cisco 10GBASE SFP+ Modules Data Sheet ↗

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

S1107: full source recordInspect review dependencies →

Claim scope: Cisco SFP-H10GB-CU1M, 1m, version -02 qualification footnote. Next review due 2027-01-21.

Suggest a correction to this field note →

Evidence behind this page

Scope first. Source second. Approval separate.

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

Page scope: content_program_cable_selection

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

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.

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.