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Generic 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
Generic 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
Generic 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
Generic 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
Product
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Questions & Answers
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All (5) Application (2)Compatibility (1)Installation (2)
Q:

What should I do if there is no signal?

by m***m on 2025-07-08 14:22:50

A:

Check polarity, cleanliness, and compatibility first.

by CPLIGHT on 2025-07-08 14:41:51

like icon Helpful 0
comment icon Comment 0
Q:

Can I use this in financial data centers?

by 3***m on 2025-07-08 14:10:28

A:

Yes, they are optimized for ultra-low latency requirements.

by CPLIGHT on 2025-07-08 14:37:34

like icon Helpful 0
comment icon Comment 0
Q:

Do I need transceiver cages?

by V***m on 2025-07-08 13:10:11

A:

Most switches have integrated cages, no additional cages needed.

by Helpful on 2025-07-08 14:40:56

like icon Helpful 0
comment icon Comment 0
Q:

Are these suitable for edge computing?

by F***m on 2025-07-08 13:01:36

A:

Yes, compact and high-performance modules are available for edge devices.

by CPLIGHT on 2025-07-08 14:37:04

like icon Helpful 0
comment icon Comment 0
Q:

Is it compatible with breakout configurations?

by V***m on 2025-07-08 12:57:16

A:

Yes, we support various breakout and parallel transmission structures.

by Helpful on 2025-07-08 14:26:59

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Customer Reviews
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All (12) Performance (3)Compatibility (2)Ease of Use (4)Customer Support (3)
a
a***m
2025-06-30 14:18:18
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
9
9***m
2025-06-27 07:38:40
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
T
T***m
2025-06-07 04:23:05
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
Y
Y***m
2025-05-30 06:17:35
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
f
f***m
2025-05-21 22:05:01
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
5
5***m
2025-05-12 22:19:42
Confirmed Purchase
5.0

Recognized immediately by our monitoring system—no configuration needed.

link icon Helpful 0
comment icon Comment 0
9
9***m
2025-05-08 21:54:24
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
k
k***m
2025-05-06 21:42:12
Confirmed Purchase
5.0

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

link icon Helpful 0
comment icon Comment 0
e
e***m
2025-04-27 19:39:00
Confirmed Purchase
5.0

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

link icon Helpful 0
comment icon Comment 0
s
s***m
2025-04-09 07:34:31
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
d
d***m
2025-04-08 21:14:37
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
w
w***m
2025-04-07 09:15:03
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
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