🔌 800G OSFP 2×FR4: High-Bandwidth Optical Interconnects for Next-Gen Networks

Powered by Optech – The Professional Optical Transceivers Manufacturer

As AI, cloud computing, and hyperscale data centers continue to expand, the need for ultra-high-speed interconnects has never been greater. The 800G OSFP 2×FR4 optical transceiver provides a future-proof, high-density solution to address the ever-increasing demands on bandwidth, power efficiency, and signal integrity across modern infrastructures.

🔍 Technical Overview: What Is 800G OSFP 2×FR4?

The 800G OSFP 2×FR4 is a pluggable optical transceiver module based on the OSFP (Octal Small Form-factor Pluggable) form factor. It delivers 800Gbps total throughput via 8×100G PAM4 electrical lanes, supporting 2 independent 400G FR4 optical channels over single-mode fiber (SMF).

📊 Key Specifications:

Feature	Specification
Form Factor	OSFP
Data Rate	800Gbps (2×400G FR4)
Modulation	PAM4 (100G per lane)
Electrical Interface	8×100G (C2M compliant)
Optical Interface	Dual LC Duplex (2×400G FR4)
Wavelengths	4× CWDM (1270–1330 nm) per FR4
Reach	Up to 2 km over SMF (each 400G channel)
Power Consumption	≤16W
FEC	KP4 RS-FEC (host-side required)
Compliance	OSFP MSA, IEEE 802.3cu, CMIS 5.2

💡 Why Choose 2×FR4 Architecture?

Instead of a monolithic 800G channel, the 2×FR4 architecture provides two fully independent 400G FR4 links within a single transceiver.

🧠 Benefits:

• ✅ Backward Compatibility: Compatible with 400G deployments and gear
• ✅ Flexible Network Design: Can be used in breakout or aggregation modes
• ✅ Lower Power Per Bit: Optimized thermal performance in dense racks

• ✅ Simplified Fiber Infrastructure: Uses duplex LC instead of MPO

🏗️ Application Scenarios

1. Spine-Leaf Interconnects in Data Centers

In modern leaf-spine architectures, 800G OSFP 2×FR4 modules are deployed to:

• Connect top-of-rack (ToR) switches to spine/core switches

• Support rapid east-west data movement

• Reduce cabling complexity via dual FR4 channels in one module

2. AI/ML & HPC Infrastructure

AI and machine learning workloads (e.g., NVIDIA DGX/HGX clusters) rely on extremely fast GPU interconnects. 800G OSFP 2×FR4 supports:

• High-bandwidth GPU-to-switch and switch-to-switch links

• Scalable Ethernet fabric for training & inference clusters

• Improved throughput with simplified cabling per node

3. Cloud & Edge Data Center Upgrades

With up to 2 km transmission range, this module is ideal for:

• Metro aggregation

• Edge computing backhaul

• Cloud-scale DCs transitioning from 400G to 800G

🏭 Why Choose Optech?

Optech is a leading optical transceiver manufacturer with over two decades of expertise in high-speed fiber optic communications.

🚀 Optech Advantages:

• 🏢 In-house R&D and ISO-certified production facilities

• 🔁 Fully tested for interoperability with Cisco, Arista, Juniper, NVIDIA, and more

• 📦 OEM/ODM support with custom logo & packaging

• 🌍 Global support with sales across 40+ countries

• 🔬 Compliance with RoHS, CE, TUV, UL, and CB standards

Whether you’re upgrading a hyperscale data center or deploying AI interconnects, Optech’s 800G OSFP 2×FR4 delivers the performance, efficiency, and reliability your network requires.

✅ Conclusion

The 800G OSFP 2×FR4 optical transceiver is a powerful solution for organizations building scalable, high-performance, and energy-efficient networks. With dual 400G FR4 lanes, long reach, and low power consumption, it’s the ideal choice for evolving cloud and AI infrastructures.

🔗 Optech continues to innovate and lead the optical transceiver industry with top-tier products designed for the next generation of connectivity.

📩 Contact us today to request a data sheet, pricing, or OEM sample.