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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Optics Transceivers | SFP Modules

200/400/800G Transceiver Modules

400G QSFP-DD/OSFP/QSFP112

214634

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

Name: QDD-400G-DR4-S
Brand: LINK-PP
SKU: 214634
Price: 415.36 USD
Availability: InStock
Rating: 4.9 (19 reviews)

# 214634

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

New Users: $10 Coupon for Orders , Code:

linkpp2610

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

19 Reviews Need Help?

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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; QDD-400G-SR8-S | 100m; QDD-400G-DR4-S | 500m; QSFP-400G-DR4 | 500m; QDD-4X100G-FR-S | 2km; QDD-XDR4-400G | 2km; QDD-4X100G-LR-S | 10km

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Cisco QDD-400G-DR4-S Compatible LINK-PP 400G QSFP-DD Specifications

The Cisco QDD-400G-DR4-S 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.

Cisco Part Number	QDD-400G-DR4-S	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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