The 800G OSFP DR8 Flat Top is an advanced single-mode optical transceiver designed for high-capacity 800Gbps networking in Arista-based data center environments. Operating at 1310nm with 8 lanes of 112G PAM4 signaling, it supports transmission distances up to 500 meters over Single-mode Fiber (SMF). Featuring a Flat Top form factor for switches with internal cooling mechanisms and a MPO-12/APC interface, this module is the definitive solution for 800G AI infrastructure connectivity in hyperscale spine-leaf architectures.
Connection Solution of 800G OSFP DR8 Fiber Tranceiver
800G Switch to Switch Connection
The cabling for 800G switch to switch links consists of high speed OSFP DR8 800G fiber optic transceivers that support 800Gbps throughput, paired with singlemode MPO|MTP cable, enabling stable, low latency 800G bandwidth data transfer between two 800G Ethernet switches, ideal for high density network interactions in data center.

800G to 2*400G Switch to Switch Links
Unleash 800G data transfer throughput with 800G to 2*400G connectivity solution. Using the high performance OSFP DR8 800G optical transceiver with MTP/MPO cables, it can split 800Gbps bandwidth into two independent 400Gbps links, while achieving seamless, ultra high speed interoperability with 800G switches to 400G switches.

800G to 8*100G Switch to Switch Links
OSFP DR8 800G optical transceivers with MTP/MPO to LC breakout cables could split 800Gbps bandwidth into 8x100Gbps links, enabling high density, low latency connectivity between 800G switches and 100G switches (paired with QSFP DR 100G optical transceiver), which is the ideal solution for scaling mixed speed networks.

Key Features of 800G Optical Transceiver
800G High Bandwidth: The 800G transceiver supports 800Gbps data rate with DR8 lane configuration, enabling ultra fast data transfer to meet the growing bandwidth needs of modern data centers and enterprise networks.
1310nm Wavelength & 500m Transmission: Operates at 1310nm optimal wavelength, supporting long distance transmission up to 500 meters over singlemode fiber (SMF), this singlemode 800G transceiver ideal for intra data center and campus network connections.
Dual 12Cores MPO/APC Connectors: Equipped with dual MPO/APC connectors, the 800G transceiver OSFP DR8 providing high density connectivity and low insertion loss for reliable signal transmission.
DOM/DDM Monitoring: Integrated Digital Optical Monitoring (DOM) and Digital Diagnostic Monitoring (DDM) functions allow real time monitoring of key parameters such as optical power, temperature, voltage, and current, facilitating proactive network maintenance and troubleshooting.
Flat Top Form Factor: Features flat top form factor, the 800G transceiver module ensures consistent signal quality and performance across different link lengths and network configurations, reducing signal distortion and bit error rate.
Deep Technical Insights Engineering for Arista Fabrics
1. Flat Top Design for Arista Cooling
Many Arista 800G switches utilize a riding heat sink design within the cage. The Flat Top OSFP allows for direct, flush contact with the switch’s internal cooling plate, maximizing thermal dissipation. Selecting the correct mechanical profile between QSFP-DD vs OSFP form factors is a critical step in maintaining the hardware’s operational lifespan in high-radix configurations.
2. Single-mode DR8 Parallel Architecture
The DR8 architecture uses 8 parallel fibers, each carrying 100G. This allows for massive bandwidth density and enables a seamless 1-to-8 breakout to 100G DR or 1-to-2 breakout to 400G DR4. This flexibility is a core component of future network innovations, allowing data center operators to scale their fabric without replacing existing fiber ducts.
Trusted 800G Transceiver with Wide Compatibility
Op2Link’s 800G OSFP 2xDR4/DR8 network transceiver undergoes rigorous compatibility testing with a full range of networking switches, including Arista, Cisco, NVIDIA, Mellanox or others series switches. Each network transceiver is 100% tested to ensure seamless plug and play integration, identical performance to original transceivers, and compliance with all relevant industry standards. You can trust Op2Link’s transceiver to deliver reliable, high performance connectivity without compromising your existing network infrastructure.

Rigorous Industrial Product Testing
800G fiber optic transceiver products are industrial products that require high stability and reliability.Op2Link adopts leading product design, first class raw materials, and production technology to ensure the first class quality of our products so that your project can be used, installed stably, and reliably. And all of transceiver module will be 100% factory test before shipping, such as Temperature Impact, Mechanical Impact, EMI Testing, MTBF Testing or etc.

Application and Solutions
The 800G OSFP DR8 Flat Top is essential for Spine-Leaf Interconnects, DCI (Data Center Interconnect), and GPU-to-GPU Clustering over extended distances. It provides the reach required for large-scale data center campuses.
1. Arista Spine-Leaf Architecture High-speed 800G backbone connectivity for cloud-scale networks.
2. 100G/400G Breakout Solutions Supports high-density migration paths from legacy 100G nodes to 800G cores.
3. AI/ML Training Clusters Provides the low-latency SMF links needed for distributed GPU computing.
To ensure your network remains resilient during this transition, consider our technical insights on choosing the right 800G optics for single-mode vs. multimode fiber environments.
Solving Your High-Speed Infrastructure Challenges
Deploying 800G DR8 over single-mode fiber requires precision in fiber cleaning and APC connector alignment. Op2Link’s team can help you navigate the complexities of optical transceiver technology trends to build a reliable and scalable network. We offer validated solutions that reduce CapEx while maintaining OEM-level performance.





