Up to 2 x 12 in one part
The 2 x 12 SFP28 cage assemblies put a long stacked port row into one press-fit part. WHSFP3202CF002 has no light pipes, while WHSFP3212CF002 and WHSFP3222CF004 add them in different arrangements.
I/O Connector products
SFP28 Connectors, Cages & Assemblies
Compare receptacles, cages and assemblies for an SFP28 host interface. Identify the component and port layout, then review mounting, heat sinks, light pipes and PCB requirements. An upgrade or replacement involving SFP+ needs separate mechanical and electrical checks.
Part number search & selector
Find SFP28 Connectors, Cages & Assemblies part numbers
Filter SFP28 connectors and cages by product type, installation, ports, light pipe, cooling and plating.
* Frozen Image and Part Number columns · drag horizontally to review all specifications
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Included Lightpipe
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Heat dissipation
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Connector Gold Plated
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Nickel Plated Shell
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| Image | Part number | Datasheet | Compare | Downloads | Pluggable I/O product type | Overall dimensions | Data Rate (Max) (Gb/s) | Installation Type | Ports | Included Lightpipe | Heat dissipation | Connector Gold Plated | Nickel Plated Shell | Sample |
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WHSFP30111F002 | SPEC | Connector | SFP28 | 25G | - | 1 x 1 | NONE | - | 30U | Ni 50U |
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WHSFP30111D002 | SPEC | Connector | SFP28 | 25G | - | 1 x 1 | NONE | - | 30U | Ni 50U |
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WHSFP30714W004 | SPEC | Cage | SFP28 | 25G | Press-Fit | 1 x 4 | ○ ○ | Heat Sink | None | None |
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Counts reflect the current published product data.
Series overview
Picking an SFP28 connector or cage
An SFP28 connector and its cage form the host side of a 25G pluggable port. Most parts here are stacked cage-and-connector assemblies, also called SFP28 cage assemblies or stacked cages, from 2 x 1 up to 2 x 12; single-row cages run from 1 x 1 to 1 x 4. For 10G designs, see SFP+ connectors and cages; for 100G ports, see QSFP28 connectors and cages.
Plating on the assemblies
Most assemblies here list 30U connector gold and a Ni 50U shell, as on WHSFP32024F002 (2 x 4). WH39HR01SDCS01 (2 x 6) lists 15U gold and Ni 30U, so check plating per part when matching a BOM.
Light pipe arrangements
Many light pipe arrangements are offered, each marked by its own symbol set in the selector. WHSFP32522F002 (2 x 2) and WHSFP32424F002 (2 x 4) are examples; the drawing shows where each light pipe sits.
Single-row cages and connectors
Single-row cages include WHSFP30211W021 (1 x 1), WHSFP30412W012 (1 x 2) and WHSFP30614W039 (1 x 4), with WH391Y119D0S02 as a solder-mount 1 x 1. The PCB connectors WHSFP30111F002, WHSFP30111D002 and WH81-151-Y0003-1 list 30U gold.
Applications
SFP28 connector use in 25G systems
SFP28 ports carry 25G server, storage and wireless fronthaul links.
25G server-access switches
Leaf and top-of-rack switches with dense 25G downlinks use stacked cage assemblies such as the 2 x 12 WHSFP3222CF002 or the 2 x 8 WHSFP32228F002, both with light pipes for link LEDs.
Radio units and fronthaul gear
Radio units and fronthaul switches often need a few 25G ports in a warm, sealed box. Heat sink cages such as WHSFP30211W018 (1 x 1) or WHSFP30714W004 (1 x 4) help there; confirm in your thermal test.
25G NICs and storage adapters
Adapter cards place one or two ports at the bracket. The 1 x 2 cages WHSFP30412W009 and WHSFP30412W012 fit two ports side by side, and the 1 x 1 WHSFP30211W031 suits single-port cards.
Downloads & technical resources
SFP28 connector datasheets and 3D models
Look up a part number to download its datasheet and, where available, the 3D model, then confirm port pitch, light pipe positions and press-fit holes before layout.
Showing representative available file sets. Search to find a specific SKU.
WH391Y119D0S02Cage
WHSFP32324F005Cage+Connector
WHSFP32024F003Cage+Connector
WHSFP32321F004Cage+Connector
WHSFP32221F005Cage+Connector
WHSFP32121F004Cage+Connector
- 62
- PDF datasheets listed
- 58
- 3D file sets listed
- 0
- PCB footprints listed
VOOHU’s published product content is reviewed by its engineering team. Specifications, downloads and technical support information are tied to specific part numbers, so you can verify them before requesting samples or a quotation.
Sourcing
SFP28 connector supply from VOOHU
VOOHU is an SFP28 connector and cage manufacturer with its own connector factory in Dongguan. Nearly every part here has a datasheet and a 3D model for checking port pitch and panel fit.
Discuss a new design
Contact FAE for a replacement assessment.
Already have a part number? Request samples or a quote.
Samples and quotations
Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project. For a quotation, send part numbers, quantities and your production schedule; typical lead time is 7–10 days.
Replacing another SFP28 cage
Share the part number and datasheet of the SFP28 cage or cage assembly in your current design. Our FAE team reviews port array, plating, light pipe arrangement and footprint, then suggests VOOHU candidates for sample validation before production.
Quality and company
VOOHU is ISO 9001 and ISO 14001 certified, and its SFP connectors and cages are RoHS compliant (third-party test report). Since 2018 VOOHU has supplied more than 1,500 customers, including 150+ listed companies.
FAQ & related guides
Questions about SFP28 connectors
Answers on manufacturing, stacked cage layouts and downloads.
Does an SFP28 cage automatically include a 25G receptacle?
No. Distinguish a standalone cage from an integrated assembly and confirm the connector and performance from the part documentation.
Can SFP28 and SFP+ use the same PCB footprint?
Determine this from the specific drawings and electrical requirements. Retention pins, board-edge position and high-speed layout may affect suitability even when outlines look similar.
Can a solder-tail SFP28 cage be reflow soldered?
Confirm from the part’s process specification. A solder-tail label does not establish reflow compatibility or provide a usable temperature profile.
How do I choose a cage with or without a heat sink?
Assess module power, airflow, height and thermal contact, and confirm whether the heat sink is included and how it is retained.
Must every parameter be fixed before requesting SFP28 support?
No. Start with the target interface, port layout, PCB/panel constraints and open questions so sales and FAE can help narrow the candidates.
Does VOOHU make SFP28 connectors in its own factory?
Yes. VOOHU manufactures SFP28 connectors, cages and stacked cage assemblies in its own connector factory in Dongguan, China. That includes large stacks such as the 2 x 12 WHSFP3232CF003, so a dense switch can take its port block from one supplier.
How do I choose between a 2 x 6 and a 2 x 12 SFP28 assembly?
Start from panel width and ports per board. A 2 x 12 part such as WHSFP3212CF002 covers the row in one piece, while 2 x 6 assemblies such as WHSFP32126F002 split it in two. Compare length, press-fit pattern and light pipes in the drawings.
Where do I find the SFP28 connector footprint and 3D model?
Search the part number in the downloads section. No separate footprint file is listed, so take the hole pattern from the datasheet drawing; most parts also have a 3D model for panel and enclosure checks.
Engineer support
SFP28 connector samples and FAE checks
Send the candidate part number and the condition you need reviewed. Sample support can be added after the selection is clear; commercial questions may be discussed in the same engineering conversation.
- 1Selected part numbers
- 2Engineering review
- 3Sample request
- 4Commercial discussion
For a replacement review
- Original part and datasheet
Include the document revision
- Operating conditions
Temperature, isolation voltage and PoE current basis
- Package constraints
Pin count, pitch and spacing between pin rows
- Project stage and annual volume
To help prioritize samples and evaluation
- Target review date
When you need candidates and a comparison of differences
Engineering review identifies candidate parts and explains the differences.
For samples and a quotation
- Candidate part numbers
From the selector or engineering review
- Quantity and project stage
Prototyping / pilot build / production
- Required delivery date
Specify sample and production timing separately
- Required documentation
Compliance documents, material declarations or third-party reports
Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project. Sales will respond on business days.
