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Juniper 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
Juniper 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
Juniper 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
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Juniper 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)Compatibility (1)Installation (2)Performance (1)
Q:

Do I need transceiver cages?

by U***m on 2025-07-08 15:56:13

A:

Most switches have integrated cages, no additional cages needed.

by Helpful on 2025-07-08 16:27:31

like icon Helpful 0
comment icon Comment 0
Q:

Are MSA standards followed?

by A***m on 2025-07-08 15:52:34

A:

Yes, all modules conform to the appropriate MSA standards.

by Helpful on 2025-07-08 16:05:06

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comment icon Comment 0
Q:

What’s the typical BER (Bit Error Rate)?

by a***m on 2025-07-08 15:52:18

A:

Typical BER is under normal operation.

by CPLIGHT on 2025-07-08 16:32:15

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Q:

What is the typical use case?

by j***m on 2025-07-08 15:42:54

A:

Use cases include HPC, DCI, AI clusters, and hyperscale networks.

by CPLIGHT on 2025-07-08 16:17:43

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comment icon Comment 0
Q:

Is professional installation required?

by z***m on 2025-07-08 15:41:38

A:

No, these are designed for easy installation by trained IT staff.

by Helpful on 2025-07-08 16:24:07

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Customer Reviews
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All (12) Performance (3)Compatibility (2)Ease of Use (4)Customer Support (3)
e
e***m
2025-07-05 00:57:27
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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A
A***m
2025-07-01 23:23:41
Confirmed Purchase
5.0

Recognized immediately by our monitoring system—no configuration needed.

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z
z***m
2025-06-29 14:39:08
Confirmed Purchase
5.0

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

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comment icon Comment 0
8
8***m
2025-06-22 15:17:29
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
A
A***m
2025-06-12 20:41:12
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
S
S***m
2025-06-11 03:12:53
Confirmed Purchase
5.0

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

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m
m***m
2025-05-25 15:02:35
Confirmed Purchase
5.0

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

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a
a***m
2025-05-17 13:16:11
Confirmed Purchase
5.0

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

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H
H***m
2025-05-10 03:17:02
Confirmed Purchase
5.0

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

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h
h***m
2025-05-06 12:24:23
Confirmed Purchase
5.0

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

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q
q***m
2025-04-29 06:35:51
Confirmed Purchase
5.0

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

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F
F***m
2025-04-15 00:30:18
Confirmed Purchase
5.0

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

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