Our enterprise requires strict adherence to networking standards. Is this module fully compliant with IEEE 802.3bs and the QSFP-DD MSA for high-density fiber cabling?

You’re fully covered. It complies seamlessly with IEEE 802.3bs, QSFP-DD MSA, and CMIS 4.0 specifications. The module ensures robust EMI resistance and exceptional optical signal integrity across all standard 400G cloud infrastructures.

We are planning a massive 400G hyperscale datacenter deployment and need around 500 units. Do you offer bulk volume discounts or any B2B tiered pricing for this QSFP-DD?

We definitely do! For high-volume batch orders, our wholesale pricing significantly lowers your per-unit cost. Just hit up our sales team via live chat or email, and we’ll prepare a custom quote to help maximize your IT procurement budget.

Hello sir, we run a mixed environment with Cisco Nexus and Arista switches. Will this LQD-M31400-DR4C module work flawlessly across both without throwing "unsupported transceiver" errors?

Yes, absolutely! This module is fully OEM compatible and can be flashed to support both Cisco and Arista simultaneously. It's truly plug-and-play, so you won't need to bypass any third-party transceiver warnings via CLI on your network switches.

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H3C QDD-DR4-400G Compatible LINK-PP 400G QSFP-DD 8 x 50G PAM4 1310nm 500m MPO-12/APC DOM SMF Optical Transceiver Module

Name: H3C QDD-DR4-400G Compatible LINK-PP 400G QSFP-DD 8 x 50G PAM4 1310nm 500m MPO-12/APC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 214639
Price: 415.36 USD
Availability: InStock
Rating: 4.9 (17 reviews)

# 214639

Product: H3C QDD-DR4-400G Compatible LINK-PP 400G QSFP-DD 8 x 50G PAM4 1310nm 500m MPO-12/APC DOM SMF Optical Transceiver Module
SKU: 214639
P/N: LQD-M31400-DR4C
Price: $ 472
Stock: 588 in Stock
Sold: 1.3K
Product URL: https://www.l-p.com/products/494477.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

For Order Over $5000 Get $100.00 Off , Code: Linkpp100

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Manufacture: LINK-PP

P/N: LQD-M31400-DR4C

Compatible:: Cisco; LINK-PP; Arista; Broadcom; Ciena; Dell; EdgeCore; FS; Generic; H3C; HPE Aruba; HW; Intel; Juniper; NVIDIA/Mellanox

Compatible P/N:: QDD-SR4-400G | 50m; QSFPDD-400G-SR8-MM850 | 100m; QDD-DR4-400G | 500m; QDD-DR4-400G-Si | 500m; QSFP112-DR4-400G | 500m; QDD-XDR4-400G | 2km; QDD-PLR4-400G | 10km

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H3C QDD-DR4-400G Compatible LINK-PP 400G QSFP-DD Specifications

The H3C QDD-DR4-400G Compatible LINK-PP module is a high-performance 400G QSFP-DD DR4 optical transceiver designed for 500m single-mode fiber applications. Operating via an 8-channel 53.125Gb/s PAM4 electrical interface and a 4-channel 106.25Gb/s optical architecture , it features a single 3.3V power supply , a maximum power consumption of 9.5W , and integrated digital diagnostic monitoring functions.

H3C Part Number	QDD-DR4-400G	Vendor Name	LINK-PP
Form Factor	QSFP-DD	Max Data Rate	425Gbps
Wavelength	1310nm	Max Cable Distance	500m
Modulation Format	PAM4	Media	SMF
Connector	MPO-12/APC	Receiver Type	PIN
Modulation (Electrical)	8x50G-PAM4	Modulation (Optical)	4x100G-PAM4
DDM/DOM	Supported	Operating Temperature Range	0°C to +70°C
Protocols	QSFP-DD MSA HW Rev 5.1, QSFP-DD CMIS Rev 5.0, IEEE 802.3bs	Warranty	5 Years

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Q: Our enterprise requires strict adherence to networking standards. Is this module fully compliant with IEEE 802.3bs and the QSFP-DD MSA for high-density fiber cabling? By S***n on 2026-04-03

A: You’re fully covered. It complies seamlessly with IEEE 802.3bs, QSFP-DD MSA, and CMIS 4.0 specifications. The module ensures robust EMI resistance and exceptional optical signal integrity across all standard 400G cloud infrastructures. By admin on 2026-04-03
Q: We are planning a massive 400G hyperscale datacenter deployment and need around 500 units. Do you offer bulk volume discounts or any B2B tiered pricing for this QSFP-DD? By S***g on 2025-10-25

A: We definitely do! For high-volume batch orders, our wholesale pricing significantly lowers your per-unit cost. Just hit up our sales team via live chat or email, and we’ll prepare a custom quote to help maximize your IT procurement budget. By admin on 2025-10-25
Q: Hello sir, we run a mixed environment with Cisco Nexus and Arista switches. Will this LQD-M31400-DR4C module work flawlessly across both without throwing "unsupported transceiver" errors? By R***z on 2025-03-01

A: Yes, absolutely! This module is fully OEM compatible and can be flashed to support both Cisco and Arista simultaneously. It's truly plug-and-play, so you won't need to bypass any third-party transceiver warnings via CLI on your network switches. By admin on 2025-03-01

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S***r

Italy

Verified Purchase

4 .0

2026-04-24

Solid 1310nm performance and DOM works well. Delivery took an extra day though.

126 Helpful vote Comments

S***r

Switzerland

Verified Purchase

5 .0

2026-02-19

Best 400G QSFP-DD DR4 transceiver ever!

89 Helpful vote Comments

M***g

Spain

Verified Purchase

5 .0

2026-02-18

The 500m reach is perfect for our inter-building SMF links. Fantastic 400G base performance!

196 Helpful vote Comments

M***s

Chile

Verified Purchase

5 .0

2025-11-22

Required high-density 400G connectivity for an enterprise machine learning cluster. These QSFP-DD modules delivered exceptional PAM4 signal integrity. The 0°C to 70°C commercial temperature rating perfectly suited our heavily air-conditioned indoor facility. ❄️

196 Helpful vote Comments

R***l

Ukraine

Verified Purchase

5 .0

2025-09-18

Highly recommend for multi-brand switch environments. Worked flawlessly across our Dell and EdgeCore gear!

114 Helpful vote Comments

S***n

Norway

Verified Purchase

5 .0

2025-08-01

We deployed a batch of these LINK-PP LQD-M31400-DR4C modules across our Arista spine-and-leaf architecture. The 1310nm EML transmitters are rock solid, and DOM integration makes remote troubleshooting a breeze for our NOC team.

174 Helpful vote Comments

J***l

Indonesia

Verified Purchase

5 .0

2025-07-12

Flawless SMF transmission up to 500m. ⚡

167 Helpful vote Comments

D***n

Ireland

Verified Purchase

5 .0

2025-06-17

Perfect for 400G hyperscale datacenter deployment!

179 Helpful vote Comments

A***n

Japan

Verified Purchase

5 .0

2025-06-05

Great value for Arista spine switches.

116 Helpful vote Comments

S***r

Netherlands

Verified Purchase

5 .0

2025-05-04

Exactly what our enterprise network needed.

37 Helpful vote Comments

D***r

Ireland

Verified Purchase

5 .0

2025-01-10

Runs cool at 70°C in outdoor cabinets.

86 Helpful vote Comments

M***g

Czech Republic

Verified Purchase

5 .0

2025-01-02

Bought these for our campus fiber network. MPO-12/APC interfaces fit perfectly without any hassle.

165 Helpful vote Comments

R***g

Mexico

Verified Purchase

5 .0

2024-12-13

Great 400G connectivity for base station backhaul. The 0-70°C temp range handles our racks fine.

124 Helpful vote Comments

P***t

Japan

Verified Purchase

5 .0

2024-11-24

Excellent alternative to expensive OEM optics! We ran interoperability tests on Cisco and Juniper hardware simultaneously. The MPO-12/APC connectors seated perfectly, achieving flawless 500m 400Gbase-DR4 transmission with zero FEC errors recorded.

45 Helpful vote Comments

T***t

Czech Republic

Verified Purchase

5 .0

2024-11-09

Excellent DDM support! I can easily monitor voltage and temp right from the CLI.

116 Helpful vote Comments

J***n

Ecuador

Verified Purchase

5 .0

2024-10-20

Plug and play with Juniper routers.

118 Helpful vote Comments

M***z

Ukraine

Verified Purchase

5 .0

2024-10-10

Tested these 400G QSFP-DD transceivers extensively for a massive data center interconnect project. They maintain strict IEEE 802.3bs compliance, keeping a steady 9.5W power draw even under heavy loads. Highly reliable for SMF! ⚡

167 Helpful vote Comments