NVIDIA

NVIDIA MMS4X50-NM | OSFP | 2xFR4 400G (800G agg) | InfiniBand NDR | 1310nm CWDM4 | 2km SMF | 2x LC duplex | finned

NVIDIA MMS4X50-NM | OSFP | 2xFR4 400G (800G agg) | InfiniBand NDR | 1310nm CWDM4 | 2km SMF | 2x LC duplex | finned

SKU:MMS4X50-NM

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Description

Twin-port OSFP optical module delivering an aggregate 800G via 2x 400G FR4 channels, each using CWDM4 wavelengths on duplex LC. Suited for medium-reach InfiniBand NDR fabric links up to 2km on SMF. Finned OSFP for enhanced thermal dissipation in high-power hosts.

Features

- Twin 400G FR4 channels for 800G aggregate bandwidth
- 2 km reach on standard SMF via CWDM4 wavelengths
- Duplex LC interfaces minimize fiber count per channel
- Finned OSFP for superior thermal performance
- Flexible channel independence for diverse topologies

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: What cabling is required?
A: Use two duplex LC single‑mode fiber pairs (one per 400G FR4 channel).

Q: Can the two 400G channels be connected to different peers?
A: Yes, each FR4 channel operates independently and can connect to separate endpoints.

Q: How does FR4 differ from MPO-based modules?
A: FR4 uses CWDM on duplex LC for longer reach (up to 2 km) versus parallel MPO optics optimized for short reach.

Q: Is it compatible with OSFP NDR ports?
A: Yes, it is designed for OSFP cages supporting InfiniBand NDR.

Technical Specifications

- Form factor: OSFP, finned heatsink
- Aggregate speed: 800Gbps (2x 400G FR4)
- Protocol: InfiniBand NDR (CWDM4/FR4 optics)
- Wavelength grid: 1310nm CWDM4
- Fiber type: Single-Mode Fiber (SMF)
- Reach: up to 2 km
- Connector: 2x LC duplex
- Independent operation per 400G channel
- Use case: leaf–spine and inter-row medium reach links

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