The useful distinction
Recognize it. Then verify it.
CFP4 uses a 56-position compact pluggable-I/O connector form in the documented Amphenol series. [C223A]
Exact source example P223: construction: 56positions;insert-moulded top-contact assemblies with press-fit cage system. durability cycles: 200. voltage vdc: 3.3. Complete ordering suffix not selected;cage/heat-sink option dimensions and3mmPCBthickness are not connector envelope.; Port count1x1/1x2/1x4 is cage port count,not contact row count. No row count inferred. No physical compatibility, pin map or hardware validation is established. [C223C]
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.
| Nominal contacts | 56S227Source-backed nominal position count: 56. |
|---|---|
| Positions / cavity span | 56 (Claim C223A); 56 (Claim C223B)S227 · S247Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V39 catalogue-expansion identification fact only; not independent technical approval, fabrication data, wiring instruction, protocol guarantee or end-to-end compatibility proof. V40 engineering-reference fact only; independent human review remains pending. This claim does not approve fabrication, rewiring, substitution, electrical safety, protocol support or end-to-end compatibility. |
| Contact pitch | 0.6 mm Example CFP4 connector pitch (Recorded example component); 0.6 mm Source-described pitch / centerline (Claim C223B); 0.6 mm published contact centerlineS247 · S926Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. example_component; CFP4 host connector example V40 engineering-reference fact only; independent human review remains pending. This claim does not approve fabrication, rewiring, substitution, electrical safety, protocol support or end-to-end compatibility. Named series only, not every family part: CFP4 U99-C hostconnector. Documented role: host connector. Complete ordering suffix not selected;cage/heat-sink option dimensions and3mmPCBthickness are not connector envelope.; Port count1x1/1x2/1x4 is cage port count,not contact row count. No row count inferred. |
| Connector role | host connectorS926Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: CFP4 U99-C hostconnector. Documented role: host connector. Complete ordering suffix not selected;cage/heat-sink option dimensions and3mmPCBthickness are not connector envelope.; Port count1x1/1x2/1x4 is cage port count,not contact row count. No row count inferred. |
| Manufacturer | Amphenol Communications SolutionsS926Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: CFP4 U99-C hostconnector. Documented role: host connector. Complete ordering suffix not selected;cage/heat-sink option dimensions and3mmPCBthickness are not connector envelope.; Port count1x1/1x2/1x4 is cage port count,not contact row count. No row count inferred. |
| Series | CFP4 U99-C hostconnectorS926Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. Named series only, not every family part: CFP4 U99-C hostconnector. Documented role: host connector. Complete ordering suffix not selected;cage/heat-sink option dimensions and3mmPCBthickness are not connector envelope.; Port count1x1/1x2/1x4 is cage port count,not contact row count. No row count inferred. |
Not recorded: Populated contacts, Contact rows, Dimensions / axis, Contact gender / arrangement, Mounting, Coupling / latch, Keying / polarization, Shell / form, Exact part / implementation, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.
Recorded variant and source limits
- Position/contact count and any example-component pitch do not establish a universal pinout, cable construction or protocol capability.
- No fabrication dimensions or face-view pin locator is published unless explicitly stated.
- Prior view context (not a source-view value): Position count is published without a V40 mating-face numbering locator.
Bounded facts, visible unknowns
Specifications and limits
| Documented identification | CFP4 56-position host connector form. [C223A] |
|---|---|
| Mechanical dimensions | No independently reviewed mechanical drawing in V39; do not use this page for fabrication, fit testing or tolerance work. |
| Engineering pinout | Source-checked engineering profile available; independent review pending. Open engineering profile → |
| Verified device list | Not included. Check exact device and accessory documentation. |
Use the source-backed form or position count only for identification. Resolve ratings, protocol, direction, wiring, cable construction and exact device support from the relevant equipment and component documentation.
Before you connect
What to check
- Identify the exact connector family and variant from the equipment or cable documentation.
- Keep shape, contact count, protocol, electrical rating and device support as separate facts.
- Do not force, rewire or adapt a connector from this recognition record; resolve the remaining requirements first.
What is not established
This field note does not approve a connection, adapter, cable assembly, rewiring scheme or fabricated part. It intentionally omits unsupported pin assignments and mechanical tolerances.
Your next step
Move from the form to the requirement.
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.
Amphenol identifies CFP4 as a 56-position pluggable-I/O connector form.
Amphenol Communications Solutions · CFP2 / CFP4 connectors ↗S227: full source recordInspect review dependencies → (private workspace)Exact source example P223: construction: 56positions;insert-moulded top-contact assemblies with press-fit cage system. durability cycles: 200. voltage vdc: 3.3. Complete ordering suffix not selected;cage/heat-sink option dimensions and3mmPCBthickness are not connector envelope.; Port count1x1/1x2/1x4 is cage port count,not contact row count. No row count inferred. No physical compatibility, pin map or hardware validation is established.
Amphenol Communications Solutions · CFP4 connector technical sheet ↗S926: full source recordInspect review dependencies → (private workspace)

