In the age of artificial intelligence, hyperscale computing, and cloud transformation, data center infrastructure must evolve rapidly to keep up with bandwidth-hungry applications. The 800G OSFP 2×DR4 optical transceiver answers that call—offering two independent 400G DR4 channels in a single high-performance OSFP form factor.

Engineered for high-density, low-latency environments, the 800G OSFP 2×DR4 module is a critical building block in next-gen Ethernet and AI cluster deployments.

1. Technical Overview: What Is 800G OSFP 2×DR4?

The 800G OSFP 2×DR4 is a hot-pluggable transceiver compliant with the OSFP MSA, integrating two full 400G DR4 optical engines into one module. It operates over single-mode fiber (SMF) with PAM4 modulation, offering up to 2×400Gbps = 800Gbps total data throughput.

Key Specifications

Feature	Specification
Form Factor	OSFP (Octal Small Form-Factor Pluggable)
Data Rate	800Gbps total (2 × 400G DR4)
Electrical Interface	8 × 100G PAM4 (C2M)
Optical Interface	2 × MPO-12 connectors (per 400G DR4)
Modulation	PAM4
Reach	Up to 500 meters over SMF
Wavelength	1310 nm (parallel optics)
FEC Requirement	KP4 RS-FEC (host side)
Power Consumption	≤16–18W (typical)
Standards Compliance	IEEE 802.3bs, OSFP MSA, CMIS 5.2

2. Key Advantages of 2×DR4 Architecture

Unlike a single 800G link, the 2×DR4 configuration contains two parallel and independent 400G DR4 optical paths. Each channel transmits 4×100G PAM4 over parallel fibers using MPO-12 connectors.

Why Choose 2×DR4?

Backward compatibility with 400G DR4 switches and routers
Breakout-ready for 2 × 400G to 8 × 100G connections
Lower power per bit compared to dual single modules
Simplified cabling in leaf–spine and AI cluster environments

3. Application Scenarios

1. Spine–Leaf Switch Interconnects (Hyperscale Data Centers)

In modern DC fabrics, leaf and spine switches must support massive east-west traffic.

800G OSFP 2×DR4 enables two 400G DR4 uplinks in a single module
Reduces power, space, and cabling complexity
Ideal for 25.6T and 51.2T switch platforms

2. AI & ML Workload Connectivity

Large-scale AI training clusters require high-throughput, low-latency networking between:

GPU-to-switch and switch-to-switch interconnects
Compatible with NVIDIA, AMD, and Ethernet-based AI fabrics
Works seamlessly in GPU PODs, DGX/HGX platforms, and AI fabrics like UBB, Xilinx, or Cisco AI mesh

3. Cloud Core and Metro Data Centers

For cloud providers expanding from 400G to 800G, the 2×DR4 solution enables:

Smooth transition using 400G DR4 breakout compatibility
Lower initial deployment cost while preparing for future 800G topologies
Flexibility for short-haul optical aggregation (<500m)

Optech: Your Expert in High-Speed Optical Transceivers

With over 20 years of fiber optic manufacturing experience, Optech is an industry leader in providing cutting-edge optical solutions for:

Data centers
Telecom operators
AIoT and cloud computing

✔ Why Choose Optech?

Full OEM & ODM support (branding, packaging, firmware customization)
Global logistics support & low MOQ for project flexibility
100% compatibility with Cisco, Arista, Juniper, NVIDIA, and more
In-house manufacturing with ISO9001, CE, UL, RoHS, and TUV certifications
Deployed in 40+ countries, serving hyperscalers and tier-1 clients

✅ Summary

Feature	Benefit
Dual 400G DR4 in one module	Simplifies deployment, saves ports
PAM4 modulation	Maximizes data throughput
OSFP form factor	Compatible with high-density switches
<500m reach	Ideal for intra-data center topologies
Optech support	Reliable delivery, OEM/ODM capability

📩 Contact Optech Today

Looking to scale your network with 800G optics?
Optech’s 800G OSFP 2×DR4 is ready for your next-generation deployment.

Reach out for:

Product datasheets
Sample requests
OEM collaboration

Part Number	Optech Part Number	Features	*Note*
800G OSFP 2×DR4	OPQM-SX5-13-CBO	800Gb/s OSFP 2xDR4 Finned top, single mode mode, MPO, 1310nm, up to 500m	Compatible with NVIDIA MMS4X00-NM

👉 Optech – The Professional Optical Transceivers Manufacturer.