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1m (3ft) Cisco Compatible 100G QSFP28 to 4 x 25G SFP28 Active Optical Breakout Cable
1m (3ft) Cisco Compatible 100G QSFP28 to 4 x 25G SFP28 Active Optical Breakout Cable
1m (3ft) Cisco Compatible 100G QSFP28 to 4 x 25G SFP28 Active Optical Breakout Cable
P/N: Q4SFP-100G-A
US$249.00
6
Reviews
2
Questions
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4-Year Warranty
30-Day Returns
30-Day Exchange
（1000 In Stock）

Product Highlights

Max. Power Consumption 2.2W
Tested in Targeted Switches for Superior Performance, Quality, and Reliability
Minimum Bend Radius 30mm for Flexible Routing
Supports 100G to 4x 25G Ethernet Interoperability
Simplifies the Patching and Offers a Cost-effective Way for Short Links
Hot Pluggable QSFP28 and SFP28 MSA Compliant
Class 1 FDA Laser Safety and RoHS Compliant
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Specifications
Q&A
Reviews
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1m (3ft) Cisco Compatible 100G QSFP28 to 4 x 25G SFP28 Active Optical Breakout Cable
The 100G QSFP28 to 4x25G SFP28 Breakout Active Optical Cable operates over Multi-Mode Fiber (MMF). This breakout cable is compliant with QSFP28 and SFP28 MSA standards. It provides a connection of a 100G QSFP28 port on one end and to four 25G SFP28 ports on the other end and is suitable for quick and simple connections within racks and across adjacent racks.
Specifications
Part Number
Q4SFP-100G-A
Vendor Name
CPLIGHT
Form Factor
QSFP28 to SFP28
Max Data Rate
100Gbps
Minimum Bend Radius
30mm
Cable Length
1m (3.28ft)
Cable Type
OM3
Jacket Material
OFNP
Wavelength
850nm
Power Consumption
100G: <2.2W; 25G: <0.8W
Transmitter Type
VCSEL
Receiver Type
PIN
Commercial Temperature Range
0 to 70°C (32 to 158°F)
Protocols
QSFP28 MSA, SFP28 MSA
Application
100G to 2x 25G Ethernet, 100GBASE SR4 Ethernet, 25GBASE SR Ethernet
Warranty
5 Years
Certification
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Questions & Answers
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All (2) Compatibility (1)Installation (1)
Q:

How should cables be routed in a high-density rack?

by M***m on 2025-07-10 15:33:16

A:

Use cable managers to maintain airflow and prevent bending.

by CPLIGHT on 2025-07-10 16:41:46

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Q:

Can these transceivers auto-negotiate with older models?

by t***m on 2025-07-10 15:23:41

A:

Yes, backward compatibility is supported in many cases.

by Helpful on 2025-07-10 16:40:25

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Customer Reviews
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All (6) Performance (1)Compatibility (1)Ease of Use (3)Value (1)
K
K***m
2025-06-25 19:52:16
Confirmed Purchase
5.0

Used in our GPU training pod (8x H100s) to connect each server node. Latency remained sub-microsecond, even with large tensor workloads.

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i
i***m
2025-06-23 13:17:26
Confirmed Purchase
5.0

Plug-and-play experience was excellent. The cables came clean and ready for immediate deployment.

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I
I***m
2025-05-06 16:29:11
Confirmed Purchase
5.0

High-quality interconnects at a fraction of the price of branded cables. Ideal for scaling AI clusters on a budget.

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h
h***m
2025-04-25 10:23:08
Confirmed Purchase
5.0

Fully compatible with our NVIDIA ConnectX-6 NICs and Mellanox switches. No firmware warnings or handshake delays.

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R
R***m
2025-04-18 23:51:19
Confirmed Purchase
5.0

Support walked us through breakout combinations and advised on lengths to minimize signal loss.

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L
L***m
2025-04-18 09:36:55
Confirmed Purchase
5.0

Pre-labeled and pre-tested AOCs made our rack wiring painless. They’re flexible enough for tight bends and clearly marked on each end.

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