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Cisco Compatible 400GBASE-SR4 QSFP112 PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module
Cisco Compatible 400GBASE-SR4 QSFP112 PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module
Cisco Compatible 400GBASE-SR4 QSFP112 PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module
P/N: Q112-400G-SR4
US$339.00
11
Reviews
4
Questions
safeguard
4-Year Warranty
30-Day Returns
30-Day Exchange
（1000 In Stock）

Product Highlights

Built-in Broadcom 7nm Chip, Max. Power Consumption 9W
Tested in Targeted Switches for Superior Performance, Quality, and Reliability
Compliant with QSFP112 MSA CMIS Rev4.0
Hot-pluggable QSFP112 Form Factor
High-speed Electrical Compliant to IEEE 802.3db
4x 106.25G PAM4 Retimed 400GAUI-4 Electrical Interface
Interoperable with other IEEE-compliant 400GBASE interfaces where applicable
Class 1 Laser Safety
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Specifications
Q&A
Reviews
Resources
Cisco Compatible 400GBASE-SR4 QSFP112 PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module
The 400GBASE-SR4 module, MTP/MPO-12 connector, up to 50m over parallel OM4 multi-mode fiber. It is compliant with QSFP112 MSA, CMIS 4.0 Interface and 400GAUI-4 standards.
The built-in digital diagnostics monitoring (DDM) allows access to real-time operating parameters. It is suitable for 400G ethernet and data center interconnect applications.
Specifications
Part Number
Q112-400G-SR4
Vendor Name
AICPLIGHT
Form Factor
QSFP112
Max Data Rate
425Gbps (4x106.25Gb/s)
Wavelength
850nm
Max Cable Distance
30m@OM3/50m@OM4
Connector
MPO-12 (APC)
Media
MMF
Transmitter Type
VCSEL
Receiver Type
PIN
TX Power
-4.6~4dBm
Minimum Receiver Power
-6.4dBm
Power Budget
1.8dB
Receiver Overload
4.0dBm
Max Power Consumption
9W
Extinction Ratio
>2.5dB
DDM/DOM
Supported
Commercial Temperature Range
0 to 70°C (32 to 158°F)
Modulation (Electrical)
4x100G-PAM4
Modulation (Optical)
4x100G-PAM4
CDR (Clock and Data Recovery)
TX & RX
Inbuilt FEC
Yes
Protocols
IEEE Std 802.3db, QSFP112 MSA, CMIS 4.0
Warranty
5 Years
Certification
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Questions & Answers
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All (4) Product (2)Compatibility (1)Installation (1)
Q:

How do I verify the module is working?

by 3***m on 2025-07-08 11:05:35

A:

Use switch CLI or monitoring tools to check link status.

by Helpful on 2025-07-08 11:12:10

like icon Helpful 0
comment icon Comment 0
Q:

Are these modules single-mode or multimode?

by I***m on 2025-07-08 09:41:38

A:

We offer both single-mode and multimode versions to meet different deployment needs.

by CPLIGHT on 2025-07-08 10:13:48

like icon Helpful 0
comment icon Comment 0
Q:

Do you offer custom labeling or OEM branding?

by w***m on 2025-07-08 09:31:01

A:

Yes, OEM branding and custom labeling are available upon request.

by CPLIGHT on 2025-07-08 10:15:52

like icon Helpful 0
comment icon Comment 0
Q:

Is it compatible with breakout configurations?

by p***m on 2025-07-08 09:08:36

A:

Yes, we support various breakout and parallel transmission structures.

by Helpful on 2025-07-08 10:44:02

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Customer Reviews
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All (11) Performance (3)Compatibility (2)Ease of Use (4)Customer Support (2)
g
g***m
2025-06-24 04:36:15
Confirmed Purchase
5.0

These Ethernet modules run flawlessly under sustained 800G load, with consistent throughput and thermal stability.

link icon Helpful 0
comment icon Comment 0
P
P***m
2025-06-23 22:09:29
Confirmed Purchase
5.0

These modules were pre-programmed and ready to install out of the box—zero configuration needed.

link icon Helpful 0
comment icon Comment 0
f
f***m
2025-06-22 07:53:06
Confirmed Purchase
5.0

The plug-and-play functionality helped speed up our Ethernet DCI rollout significantly.

link icon Helpful 0
comment icon Comment 0
5
5***m
2025-06-16 09:27:51
Confirmed Purchase
5.0

Fully interoperable with Arista, Dell, and white-box switches in our lab.

link icon Helpful 0
comment icon Comment 0
k
k***m
2025-06-15 04:19:33
Confirmed Purchase
5.0

Technical support provided clear guidance on 800G-to-2x400G breakouts for our aggregation layer.

link icon Helpful 0
comment icon Comment 0
c
c***m
2025-06-13 15:23:25
Confirmed Purchase
5.0

The signal quality remains intact even at extended range over single-mode fiber.

link icon Helpful 0
comment icon Comment 0
G
G***m
2025-06-13 09:33:35
Confirmed Purchase
5.0

These modules were pre-programmed and ready to install out of the box—zero configuration needed.

link icon Helpful 0
comment icon Comment 0
q
q***m
2025-06-03 05:26:15
Confirmed Purchase
5.0

Recognized immediately by our monitoring system—no configuration needed.

link icon Helpful 0
comment icon Comment 0
c
c***m
2025-05-25 16:01:53
Confirmed Purchase
5.0

Ideal for large-scale cloud and DCI applications—maintains excellent performance across long-haul distances.

link icon Helpful 0
comment icon Comment 0
E
E***m
2025-05-18 02:26:42
Confirmed Purchase
5.0

The latch design makes removal and re-insertion quick even in tight spaces.

link icon Helpful 0
comment icon Comment 0
S
S***m
2025-04-24 06:08:38
Confirmed Purchase
5.0

After deployment, support followed up to ensure the modules had passed our internal benchmarks.

link icon Helpful 0
comment icon Comment 0
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