OSFP 400GBASE-SR8 Transceiver | PAM4 850nm 100m MMF MTP/MPO-16 | OSFP-400G-SR8 - Refurbished

OSFP 400GBASE-SR8 Optical Transceiver — High-Performance 400G for Data Centers & AI Infrastructure

Save significantly over OEM pricing on this OSFP 400G-SR8 transceiver, backed by Reef Telecom's industry-leading 10-year warranty. Delivers reliable 400 Gigabit Ethernet connectivity with superior thermal performance for high-density data center and AI/HPC environments.

Technical Specifications

• Form Factor: OSFP (Octal Small Form-Factor Pluggable), hot-pluggable
• Data Rate: 400Gbps aggregate (8x 50Gbps PAM4 lanes)
• Wavelength: 850nm VCSEL
• Max Reach: 100m over OM4 MMF / 70m over OM3 MMF
• Connector: MTP/MPO-16 (APC)
• Modulation: PAM4 with DSP
• Digital Diagnostics: DOM (Digital Optical Monitoring)
• Standards: IEEE 802.3bs, OSFP MSA, CMIS compliant
• Breakout Capable: 2x 200G-SR4 or 8x 50G-SR
• Power Consumption: <12W typical

Why Choose OSFP for 400G?

The OSFP form factor provides enhanced thermal management over QSFP-DD, with a larger heat dissipation surface that supports up to 15–20W power budgets. This makes it ideal for high-density AI/ML GPU clusters, hyperscale data centers, and spine-leaf architectures where thermal stability is critical.

Ideal Applications

• 400G Ethernet data center interconnects (leaf-spine, rack-to-rack)
• AI/ML training cluster GPU-to-GPU fabric
• High-Performance Computing (HPC) interconnects
• InfiniBand networking (NVIDIA Spectrum-4 compatible platforms)
• Cloud and hyperscale network infrastructure

Every refurbished transceiver from Reef Telecom is fully tested, cleaned, and validated before shipping. Enjoy free shipping on orders over $300 and our unmatched 10-year warranty for total peace of mind.