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Ruijie 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
Ruijie 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
Ruijie 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
8
Reviews
4
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
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Ruijie 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 (4) Application (1)Installation (1)Performance (2)
Q:

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

by x***m on 2025-07-15 14:40:36

A:

Use cable managers to maintain airflow and prevent bending.

by CPLIGHT on 2025-07-15 15:21:40

like icon Helpful 0
comment icon Comment 0
Q:

What is the typical latency of these modules?

by E***m on 2025-07-15 14:08:15

A:

Latency ranges from sub-microsecond to a few microseconds.

by CPLIGHT on 2025-07-15 15:23:54

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Q:

Is this product suitable for data center deployments?

by N***m on 2025-07-15 14:05:08

A:

Absolutely, all models are designed for high-density data center environments.

by CPLIGHT on 2025-07-15 15:23:22

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Q:

What’s the signal integrity like?

by q***m on 2025-07-15 13:51:43

A:

Excellent signal integrity is maintained across rated distances.

by CPLIGHT on 2025-07-15 15:24:25

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Customer Reviews
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All (8) Performance (2)Compatibility (1)Ease of Use (3)Customer Support (2)
8
8***m
2025-06-12 04:15:37
Confirmed Purchase
5.0

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

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f
f***m
2025-06-11 10:10:48
Confirmed Purchase
5.0

Recognized immediately by our monitoring system—no configuration needed.

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H
H***m
2025-06-10 20:42:00
Confirmed Purchase
5.0

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

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R
R***m
2025-06-09 02:47:46
Confirmed Purchase
5.0

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

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e
e***m
2025-05-28 01:27:48
Confirmed Purchase
5.0

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

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W
W***m
2025-04-28 00:53:43
Confirmed Purchase
5.0

Clearly marked interface types and power class labels simplified identification and planning.

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T
T***m
2025-04-10 18:19:53
Confirmed Purchase
5.0

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

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L
L***m
2025-04-10 13:09:41
Confirmed Purchase
5.0

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

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