Request a Quote CART
English

800G OSFP Breakout DAC

4 Results

Sort by:

800G OSFP Breakout DAC Overview

The 800G OSFP Breakout DAC category contains four passive copper twinax cable assemblies for short-distance connections from an 800G OSFP switch port to multiple network interface ports. Each model uses an 800G OSFP Finned Top main connector with an integrated heat sink and splits the aggregate bandwidth into either two 400G or four 200G links. Breakout options include OSFP Flat Top, OSFP Finned Top, and QSFP112 branch connectors. Available in lengths from 1m to 3m, these cables support switch-to-NIC interconnects in telecommunications facilities, AI systems, high-performance computing clusters, and data center environments.

O800-2O400-C is a passive copper breakout cable with one 800G OSFP Finned Top main connector and two 400G OSFP Flat Top branch connectors. The main end is designed for an air-cooled switch port, while each branch carries a 400G connection to an OSFP NIC or system port using a floating heat-sink structure. Available from 1m to 3m, it connects 800G switches with two 400G ports in DGX, ConnectX-7, BlueField-3 DPU, AI, and data center systems.

O800-2Q400-C uses one 800G OSFP Finned Top connector at the switch end and divides the connection into two 400G QSFP112 branch connectors. Each QSFP112 end carries 400G, providing an aggregate 800G passive copper link between an air-cooled OSFP switch port and two QSFP112 NIC ports. The cable is offered in 1m to 3m lengths for short-distance interconnects in AI clusters, high-performance computing systems, telecommunications facilities, and data centers.

O800-4O200-C is a passive copper breakout cable that connects one 800G OSFP Finned Top switch port to four 200G OSFP Finned Top branch ports. The main connector carries the full 800G bandwidth, while each branch provides a separate 200G link. Both the main and breakout connectors use integrated finned-top heat-sink structures. Available in lengths from 1m to 3m, it supports short-reach connections between an 800G switch and four 200G network interface ports.

O800-4Q200-C provides one 800G OSFP Finned Top main connector and four 200G QSFP112 branch connectors in a passive copper breakout structure. The OSFP end carries an aggregate 800G connection from an air-cooled switch, which is divided across four QSFP112 ports operating at 200G each. Offered in 1m to 3m lengths, this cable connects 800G switching platforms with four 200G NIC ports in AI, high-performance computing, telecommunications, and data center systems.

FAQ

How do the four models in the 800G OSFP Breakout DAC category differ in branch count, branch speed, and connector type?

All four models use an 800G OSFP Finned Top main connector. O800-2O400-C provides two 400G OSFP Flat Top branches, O800-2Q400-C provides two 400G QSFP112 branches, O800-4O200-C provides four 200G OSFP Finned Top branches, and O800-4Q200-C provides four 200G QSFP112 branches.

What connector arrangement does O800-2O400-C use between an 800G air-cooled switch port and two 400G network interface ports?

It uses one 800G OSFP Finned Top connector at the switch end and two 400G OSFP Flat Top connectors at the branch ends. The finned main connector provides an integrated heat sink, while the flat-top branches are designed for ports with cage-mounted heat sinks.

When should O800-2Q400-C be selected instead of O800-2O400-C for an 800G-to-two-400G breakout connection?

Select O800-2Q400-C when the two destination ports use QSFP112 interfaces. Select O800-2O400-C when the destination ports require OSFP Flat Top connectors. Both models divide the 800G main connection into two independent 400G branches.

What is the practical difference between O800-4O200-C and O800-4Q200-C when connecting one 800G switch port to four 200G ports?

The branch connector is different. O800-4O200-C terminates in four 200G OSFP Finned Top connectors, while O800-4Q200-C terminates in four 200G QSFP112 connectors. Both provide four separate 200G links with an aggregate bandwidth of 800G.

What cable lengths are available for the four models in the 800G OSFP Breakout DAC category?

From 1m to 3m. O800-2O400-C, O800-2Q400-C, O800-4O200-C, and O800-4Q200-C share the same specified length range for short-distance copper connections between compatible equipment. Comparable 800G passive splitter architectures are also specified for 1–3m deployments.

Do the cable assemblies in the 800G OSFP Breakout DAC category contain active signal-conditioning electronics in the data path?

No. They are passive direct attach copper cables and do not contain active retimers or equalizers in the data path. The electrical signals travel directly through the copper twinax conductors between the 800G main connector and the breakout connectors.

What breakout mode must the switch port support when deploying O800-2O400-C, O800-2Q400-C, O800-4O200-C, or O800-4Q200-C?

A matching 1:2 or 1:4 breakout mode is required. O800-2O400-C and O800-2Q400-C use a 2×400G configuration with four 100G-PAM4 channels per branch. O800-4O200-C and O800-4Q200-C use a 4×200G configuration with two 100G-PAM4 channels per branch.

Which 800G OSFP Breakout DAC models match QSFP112 network interfaces on ConnectX-7 adapters or BlueField-3 DPUs?

O800-2Q400-C and O800-4Q200-C. Choose O800-2Q400-C for two 400G QSFP112 interfaces or O800-4Q200-C for four 200G QSFP112 interfaces. QSFP112-ended splitter cables are used with QSFP112-based ConnectX-7 adapters and BlueField-3 DPUs.

From Our Blog

View All Articles →