What is an 800G OSFP to 2x400G breakout DAC?
This is a passive copper cable that connects a single 800G OSFP port on a network device (like a switch) and splits it into two independent 400G connections. It's used to connect a high-speed 800G port to two lower-speed 400G devices, such as servers or other switches, over very short distances.

What are the primary advantages of using a passive DAC like this?
The main advantages are cost, latency, and power consumption. Passive DACs are significantly more affordable than optical transceivers. They add virtually zero latency to the link, which is critical for high-performance computing. Finally, they consume no power, which reduces overall data center operational expenses and cooling requirements.

What is the maximum transmission distance for this 800G OSFP DAC family?
This product family supports distances ranging from 1 meter up to 2.5 meters. They are intended for intra-rack or adjacent-rack connectivity only. For longer distances, an Active Optical Cable (AOC) or optical transceivers should be considered.

Does my switch need to support any special features to use this breakout cable?
Yes. The host device's 800G port must be configured for and support "breakout" mode, also known as channelization. This allows the single physical port to operate as multiple independent, lower-speed logical ports. You should verify this capability with your switch manufacturer's documentation.

What is the difference between a 26AWG and a 30AWG cable version?
AWG (American Wire Gauge) refers to the thickness of the copper conductors. A lower AWG number (like 26AWG) means a thicker wire, which generally offers better signal integrity but is stiffer. A higher number (like 30AWG) means a thinner, more flexible wire, which is easier for cable management in dense environments but is typically used for the shortest lengths.

Is this 800G OSFP DAC the same as an "OSFP-XD" cable?
No, they are different. This product is a standard passive DAC for very short distances (up to 2.5m). OSFP-XD (eXtended Distance) is a specific MSA for a type of active electrical cable designed to reach longer distances (e.g., up to 7 meters) than passive DACs. This product is not an OSFP-XD cable.

What are the typical applications for an 800G to 2x400G breakout cable?
Common applications include connecting an 800G Top-of-Rack switch to two servers with 400G NICs, building high-density fabrics for AI/ML clusters, and creating high-bandwidth interconnects between leaf and spine switches within the same rack.

Are these cables hot-swappable?
Yes, like standard OSFP modules, these DAC assemblies are designed to be hot-swappable, allowing for installation and removal without powering down the host network device. However, it is always best practice to follow the equipment manufacturer's guidelines.

Functionality:
This is a breakout cable designed to connect a single 800G OSFP port to two independent 400G ports. Confirm that your host device (switch, router) supports this 800G-to-2x400G breakout mode on the intended port.

Length Selection:
1m - 1.5m: Ideal for connecting a Top-of-Rack (ToR) switch to servers within the same rack unit (RU) space.
2m - 2.5m: Suitable for connecting devices at the top and bottom of the same rack or in immediately adjacent racks. Always measure the required cable path, including routing, before ordering.

Cable Gauge (AWG):
30AWG: Offers greater flexibility and a smaller bend radius, which is advantageous for high-density patching and simplified cable management. Best for shorter lengths.
26AWG: Provides better signal integrity over slightly longer distances within the product's supported range. It is less flexible than 30AWG.

Environment:
These cables are specified for commercial temperature ranges ('C' grade), making them suitable for standard, climate-controlled data center environments.

High-Density Top-of-Rack (ToR) Aggregation:
Connect a single 800G port on a ToR switch to two 400G uplinks from servers equipped with high-performance NICs, maximizing port utilization and simplifying cabling.

AI/ML Cluster Fabric:
Provide cost-effective, low-latency interconnects between GPU servers and fabric switches in AI training clusters, where minimizing communication delay is critical.

Leaf-Spine Architecture:
Use for high-bandwidth, in-rack connections between leaf and spine switches in a collapsed data center fabric design.

Storage Network Interconnects:
Link high-throughput storage arrays with 400G ports to an 800G core switch, ensuring a high-speed, low-latency path for data access.

Lab and Testing Environments:
Enable flexible and economical connectivity for testing 800G and 400G network equipment without the expense of optical transceivers.