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Cisco Compatible 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM MPO-16/APC MMF Optical Transceiver Module, Breakout to 2 × 200G-SR4 and 8 × 50G-SR
Cisco Compatible 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM MPO-16/APC MMF Optical Transceiver Module, Breakout to 2 × 200G-SR4 and 8 × 50G-SR
Cisco Compatible 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM MPO-16/APC MMF Optical Transceiver Module, Breakout to 2 × 200G-SR4 and 8 × 50G-SR
P/N: QDD-400G-SR8
US$189.00
12
Reviews
5
Questions
safeguard
4-Year Warranty
30-Day Returns
30-Day Exchange
（1000 In Stock）

Product Highlights

Built-in Inphi DSP Chip, Max. Power Consumption 10W
Tested in Targeted Switches for Superior Performance, Quality, and Reliability
Compliant with QSFP-DD MSA CMIS Rev4.0, OIF 56G PAM4
Hot Pluggable QSFP-DD Form Factor
High-speed Electrical Compliant to IEEE 802.3cd
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
Cisco Compatible 400GBASE-SR8 QSFP-DD PAM4 850nm 100m DOM MPO-16/APC MMF Optical Transceiver Module, Breakout to 2 × 200G-SR4 and 8 × 50G-SR
The 400GBASE-SR8 module, MTP/MPO-16 connector, up to 100m over parallel OM4 multi-mode fiber. It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard.
The 400 Gigabit Ethernet signal is carried over eight wavelengths. Multiplexing and demultiplexing of the eight wavelengths are managed within the device. And it can Support 2× 200G-SR4 and 8× 50G-SR.
Specifications
Part Number
QDD-400G-SR8
Vendor Name
AICPLIGHT
Form Factor
QSFP-DD
Max Data Rate
400Gbps
Wavelength
850nm
Max Cable Distance
70m@OM3/100m@OM4
Connector
MPO-16/APC
Media
MMF
Transmitter Type
VCSEL 850nm
Receiver Type
PIN
TX Power
-6~4dBm
Minimum Receiver Power
-7.9dBm
Power Budget
1.9dB
Receiver Overload
4dBm
Max Power Consumption
10W
Extinction Ratio
3dB
DDM/DOM
Supported
Commercial Temperature Range
0 to 70°C (32 to 158°F)
Modulation (Electrical)
8x50G-PAM4
Modulation (Optical)
8x50G-PAM4
CDR (Clock and Data Recovery)
TX & RX
Inbuilt FEC
No
Core Size
50/125µm
Packaging Technology
COB
Protocols
IEEE 802.3cd, QSFP-DD MSA, CMIS 4.0
Warranty
5 Years
Certification
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Questions & Answers
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All (5) Application (1)Product (3)Compatibility (1)
Q:

Can I request a test report for each batch?

by 3***m on 2025-07-08 17:08:02

A:

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

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

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comment icon Comment 0
Q:

Are these modules single-mode or multimode?

by Z***m on 2025-07-08 17:07:02

A:

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

by CPLIGHT on 2025-07-08 17:15:15

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Q:

Can this cable be used with OSFP/QSFP-DD ports?

by y***m on 2025-07-08 16:51:36

A:

Yes, we offer cables with a wide range of interface compatibility.

by CPLIGHT on 2025-07-08 17:22:26

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Q:

What is the operating temperature range?

by w***m on 2025-07-08 16:45:37

A:

Most modules operate between 0°C to 70°C, with extended versions available.

by CPLIGHT on 2025-07-08 17:17:39

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Q:

Can I use this module in AI training environments?

by G***m on 2025-07-08 15:47:24

A:

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

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

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Customer Reviews
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All (12) Performance (3)Compatibility (2)Ease of Use (4)Customer Support (3)
u
u***m
2025-06-26 13:43:36
Confirmed Purchase
5.0

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

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comment icon Comment 0
h
h***m
2025-06-20 21:05:20
Confirmed Purchase
5.0

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

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y
y***m
2025-06-14 14:29:06
Confirmed Purchase
5.0

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

link icon Helpful 0
comment icon Comment 0
N
N***m
2025-06-13 12:19:45
Confirmed Purchase
5.0

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

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k
k***m
2025-06-11 23:21:43
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
s
s***m
2025-06-09 16:21:18
Confirmed Purchase
5.0

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

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W
W***m
2025-05-25 00:41:44
Confirmed Purchase
5.0

Recognized immediately by our monitoring system—no configuration needed.

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L
L***m
2025-05-22 05:29:57
Confirmed Purchase
5.0

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

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J
J***m
2025-05-19 22:24:50
Confirmed Purchase
5.0

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

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p
p***m
2025-05-11 22:18:48
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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K
K***m
2025-05-07 06:28:40
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
m
m***m
2025-04-30 13:52:37
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
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