Q112-400LPO-DR4 NVIDIA/Mellanox Compatible 400G QSFP112 DR4 1310nm 500m SMF PAM4 LPO Optical Transceiver

RoCE Ethernet Interconnects

400G QSFP112 DR4 500m Transceiver | Q112-400LPO-DR4

Catalog reference: NVIDIA/Mellanox Compatible 400GBASE-DR4 QSFP112 RHS/Flat Top 4x100G PAM4 1310nm 500m SMF DOM MPO-12/APC Linear-drive Pluggable Optics (LPO) Optical Transceiver Module

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NVIDIA/Mellanox compatible 400G QSFP112 DR4 LPO optical transceiver features low power consumption of less than 4.5W and ultra-low latency. By replacing traditional DSP with LPO technology, it delivers higher transmission efficiency and lower latency. Supporting 4×112G PAM4 interface and up to 500m transmission over single-mode fiber, it is ideal for high-speed networking scenarios such as AI data centers, 400G Ethernet interconnect, and high-performance computing.

Family q112-400lpo-dr4-104256Model Q112-400LPO-DR42 SKU options

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SKU 104256 - Model Q112-400LPO-DR4

Q112-400LPO-DR4 NVIDIA/Mellanox Compatible 400G QSFP112 DR4 1310nm 500m SMF PAM4 LPO Optical Transceiver

BrandSUNFULL

Compatible brand / platformNVIDIA/Mellanox (Ethernet)

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Product brand: SUNFULL. Third-party names identify requested compatibility or coding targets only and do not imply affiliation, endorsement or original-equipment status.

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Low power consumption ≤4.5W.
Remove DSP and use linear direct drive to reduce delay and improve transmission efficiency.
Compliant with Hot Pluggable QSFP112 MSA Rev5.0, IEEE802.3df Standard.
Class1/1M Standard Product, Compliant with RoHS Environmental Protection Standards (Lead-Free).
DDM(Digital Diagnostic Monitoring) Supported.

Engineering record

Specifications

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Form Factor: QSFP112
Distance: 500m
Wavelength: 1310nm
Connector: MTP/MPO-12 APC
Power Consumption: ≤4.5W
Transmitter: DFB
Receiver: PIN
Media: SMF
Modulation (electrical): 4x106.25Gb/s PAM4
Modulation (Optical): 4x106.25Gb/s PAM4
Case Temperature(℃): 0 to 70°C (32 to 158°F)
Protocol: 400G Ethernet Compliant

Technical detail

Construction and application notes for Q112-400LPO-DR4

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Interface and construction

Q112-400LPO-DR4 adopts a DSP-free linear architecture, reducing power consumption by approximately 50% (4.5W vs. 9.5W) compared with conventional 400G retimed optics. This simplified design reduces transmission latency and improves link efficiency, while also optimizing TCO through reduced cooling, power consumption, and infrastructure requirements. Designed for large-scale AI training clusters, it offers broad compatibility with mainstream RoCE devices for stable and efficient deployment.