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NVIDIA/Mellanox Compatible 400GBASE-SR4 QSFP-DD PAM4 850nm 100m DOM MPO-12/APC MMF Ethernet Optical Transceiver Module, Breakout to 2 x 200G-SR and 4 x 100G-SR
NVIDIA/Mellanox Compatible 400GBASE-SR4 QSFP-DD PAM4 850nm 100m DOM MPO-12/APC MMF Ethernet Optical Transceiver Module, Breakout to 2 x 200G-SR and 4 x 100G-SR
NVIDIA/Mellanox Compatible 400GBASE-SR4 QSFP-DD PAM4 850nm 100m DOM MPO-12/APC MMF Ethernet Optical Transceiver Module, Breakout to 2 x 200G-SR and 4 x 100G-SR
P/N: QDD-400G-SR4
US$429.00
12
Reviews
5
Questions
safeguard
4-Year Warranty
30-Day Returns
30-Day Exchange
（1000 In Stock）

Product Highlights

Built-in Maxlinear Chip, Max. Power Consumption 8W
Tested in Targeted Switches for Superior Performance, Quality, and Reliability
Compliant with QSFP-DD MSA, CMIS Rev5.2
Hot Pluggable QSFP-DD Form Factor
High-speed Electrical Compliant to IEEE802.3bs
8x 50G PAM4 Retimed 400GAUI-8 Electrical Interface
QSFP-DD Port is Backward Compatible with QSFP+, QSFP28 and QSFP56 Modules
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Specifications
Q&A
Reviews
Resources
NVIDIA/Mellanox Compatible 400GBASE-SR4 QSFP-DD PAM4 850nm 100m DOM MPO-12/APC MMF Ethernet Optical Transceiver Module, Breakout to 2 x 200G-SR and 4 x 100G-SR
The 400GBASE-SR4 module, MTP/MPO-12 connector, up to 100m over parallel OM4 multi-mode fiber. It is compliant to IEEE 802.3bs protocol and 400GAUI-8 standard.The 400 Gigabit Ethernet signal is carried over four parallel lanes by one wavelength per lane. It can support 2 x 200G-SR and 4 x 100G-SR.
Specifications
Part Number
QDD-400G-SR4
Vendor Name
AICPLIGHT
Form Factor
QSFP-DD
Max Data Rate
400Gbps
Wavelength
850nm
Max Cable Distance
60m@OM3/100m@OM4
Connector
MTP/MPO-12 (APC)
Media
MMF
Transmitter Type
VCSEL 850nm
Receiver Type
PIN
TX Power
-4.6~4dBm
RX Power
-6.3~4dBm
Max Power Consumption
8W
Extinction Ratio
2.5dB
DDM/DOM
Supported
Commercial Temperature Range
0 to 70°C (32 to 158°F)
Modulation (Electrical)
4x100G-PAM4
Modulation (Optical)
8x50G-PAM4
CDR (Clock and Data Recovery)
TX & RX
Inbuilt FEC
Yes
Core Size
50/125µm
Packaging Technology
COB
Protocols
IEEE 802.3bs, QSFP-DD MSA, IEEE 802.3db,CMIS rev 5.2
Warranty
5 Years
Certification
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Questions & Answers
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All (5) Application (1)Product (1)Compatibility (1)Installation (1)Performance (1)
Q:

Do the modules support FEC?

by f***m on 2025-07-08 17:14:37

A:

Yes, forward error correction is supported.

by Helpful on 2025-07-08 17:30:37

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comment icon Comment 0
Q:

Can I use this module in AI training environments?

by z***m on 2025-07-08 17:10:22

A:

Yes, our IB and high-speed Ethernet modules are suitable for AI workloads.

by CPLIGHT on 2025-07-08 17:26:16

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comment icon Comment 0
Q:

Can I request a test report for each batch?

by s***m on 2025-07-08 16:27:37

A:

Yes, test reports can be provided for all outgoing batches.

by Helpful on 2025-07-08 17:16:27

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Q:

Are MSA standards followed?

by F***m on 2025-07-08 16:18:19

A:

Yes, all modules conform to the appropriate MSA standards.

by CPLIGHT on 2025-07-08 17:21:50

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Q:

Do these modules require cooling?

by e***m on 2025-07-08 16:13:40

A:

Active cooling is recommended for high-power models.

by CPLIGHT on 2025-07-08 17:28:50

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Customer Reviews
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All (12) Performance (3)Compatibility (2)Ease of Use (4)Customer Support (3)
M
M***m
2025-07-06 06:40:19
Confirmed Purchase
5.0

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

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h
h***m
2025-06-25 06:35:57
Confirmed Purchase
5.0

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

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g
g***m
2025-06-25 02:28:04
Confirmed Purchase
5.0

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

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comment icon Comment 0
5
5***m
2025-06-19 12:10:07
Confirmed Purchase
5.0

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

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comment icon Comment 0
O
O***m
2025-06-14 01:35:21
Confirmed Purchase
5.0

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

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G
G***m
2025-06-01 03:24:40
Confirmed Purchase
5.0

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

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M
M***m
2025-05-25 23:32:01
Confirmed Purchase
5.0

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

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m
m***m
2025-05-05 08:03:58
Confirmed Purchase
5.0

The pre-sales consultation was detailed and tailored to our specific data center needs. Very professional experience.

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r
r***m
2025-04-20 14:42:19
Confirmed Purchase
5.0

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

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b
b***m
2025-04-17 19:00:31
Confirmed Purchase
5.0

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

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comment icon Comment 0
F
F***m
2025-04-17 15:25:10
Confirmed Purchase
5.0

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

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x
x***m
2025-04-05 18:55:56
Confirmed Purchase
5.0

Recognized immediately by our monitoring system—no configuration needed.

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