25GBE SFP28 2x12-A1 WITH OUTER AND INNER LIGHT PIPE
25GBE SFP28 2x12-A1 WITH OUTER AND INNER LIGHT PIPE

25GBE SFP28 2x12-A1 WITH OUTER AND INNER LIGHT PIPE

39015-00XXX1


Data Rate: 28Gbps Max

Port Configuration: 2x12

Circuits: 20 Circuits/Port

Pitch: 0.8 mm

EMI Finger: Yes

Light Pipe: 48 LP, Left Down

Mounting: Press Fit

Operating Temperature: -40 to 85°C

Dimensions: 63.2 x 171.75 x 25.8 mm


25GBE SFP28 2x12-A1 WITH OUTER AND INNER LIGHT PIPE Description

39015-00XXX1 is the most visibility-focused high-count option in this group, pairing a 2x12 stacked SFP28 connector layout with 48 light pipes in a Left Down arrangement. That combination makes the part distinctive for very large port arrays where status indication has to remain readable across many closely grouped interfaces instead of being treated as an afterthought.

Its 171.75 mm width shows that this is a wide, high-capacity cage rather than a compact connector-only part. With EMI finger support and press-fit mounting, the structure is aimed at organized integration of a very large stacked 28Gbps cage array while keeping extensive light-pipe coverage across the front-panel side.

25GBE SFP28 2x12-A1 WITH OUTER AND INNER LIGHT PIPE Specification

ParameterSpecification
Model39015-00XXX1
Product NameSFP28 2x12-A1 WITH OUTER AND INNER LIGHT PIPE
Product Type2x12 Stacked SFP28 Connector
Number of Ports2x12
Number of Lanes1 Lane/Port
Number of Circuits20 Circuits/Port
Data Rate28Gbps Max
Pitch0.8 mm
Dimensions63.2 x 171.75 x 25.8 mm
Depth63.2 mm
Width171.75 mm
Height25.8 mm
EMI FingerYes
Height25.8 mm
Light Pipe48 LP, Left Down
Heat SinkNo
MountingPress Fit
Operating Temperature-40°C to +85°C

Quality Certification

Our SFP28 connector cages are backed by multiple international certifications, demonstrating compliance with rigorous standards for product quality, operational reliability, safety, and environmental protection. Major certifications include ISO 9001, IATF 16949, QC 080000, ROHS, REACH, UL, and ELCC.

IATF 16949

QC 080000

REACH

ROHS

UL

ELCC

Key Advantages of SFP28 Cage Connectivity

Built for 25G-class transmission, SFP28 cage delivers higher per-port bandwidth, better lane efficiency, and a compact interface format that fits modern data center and high-throughput equipment.

Higher Bandwidth, Compact Size
SFP28 raises single-lane bandwidth to the 25G class while keeping a compact port format. This allows equipment to increase per-port throughput without giving up front-panel density or moving every link to a larger multi-lane interface.
Better Lane Efficiency
Because 25G is widely used as a building block for 100G breakout and high-density switch designs,25gb SFP28 fits naturally into newer network architectures. It gives system designers a cleaner way to scale bandwidth across many ports.
A Smarter Step Beyond 10G
25gb SFP28 is often selected when 10G links are no longer enough but 40G or 100G on each access port would be excessive. It helps platforms move to higher throughput with more controlled cost, power, and layout complexity.
Built for High-Throughput Systems
Compared with older 10G deployments, SFP28 is better matched to cloud data centers, distributed storage, AI clusters, and performance-driven switching environments where traffic intensity and port utilization are much higher.

SFP28 Connector Applications in 25G Networks

SFP28 is commonly used where 25G single-lane performance is a better match than traditional 10G links, especially in platforms that need more bandwidth per port without sacrificing density.

25G server-to-switch interconnects

25G server-to-switch interconnects

25gb SFP28 is widely used between servers and Top-of-Rack switches in data centers where 10G access links have become a limiting factor. It provides a more suitable bandwidth level for newer server NICs and higher east-west traffic loads.

 100G breakout and leaf-spine switching architectures

100G breakout and leaf-spine switching architectures

In many switch designs, 100G uplinks are broken out into 4 x 25G lanes. SFP28 fits this architecture well by giving server-facing and edge-facing ports a lane speed that aligns more efficiently with 100G network fabrics.

High-performance storage and NVMe-based systems

High-performance storage and NVMe-based systems

SFP28 connector is also well suited for storage platforms and backend fabrics that move large data sets continuously. The higher single-port throughput helps support faster replication, lower congestion, and better performance in bandwidth-heavy storage environments.

AI, HPC, and cloud computing platforms

AI, HPC, and cloud computing platforms

AI clusters, high-performance computing systems, and cloud infrastructure often generate heavier traffic patterns than traditional enterprise networks. 25gb SFP28 is a stronger fit for these environments because it supports denser 25G connectivity at the server and equipment edge.

SFP28 Connector Cage FAQs

What is SFP28 cage?

SFP28 cageis a compact pluggable interface format commonly used for 25G Ethernet links. It is designed for single-lane high-speed connectivity and is widely used in switches, servers, storage systems, and data center equipment.

How is SFP28 different from SFP+?

The main difference is bandwidth. SFP+ is typically used for 10G applications, while SFP28 is designed for 25G-class links. This makes SFP28 a more suitable option when 10G is no longer enough but a larger interface is not desired.

Why is 25gb SFP28 widely used in data centers?

25gb SFP28 is widely used in data centers because it provides higher bandwidth per port, aligns well with 100G breakout architectures, and supports dense 25G server access in a compact form factor.

Can SFP28 connector cages be customized?

Yes. SFP28 connector cages can be customized based on application and design requirements, including structure, dimensions, mounting method, and other product details.
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