HP
HP 845404-B21 1M 100GB QSFP28 to QSFP28 DAC Cable
High-Speed Data Transfer with Reliable ConnectivityEnsure seamless and rapid data transmission with the HP 1M 100GB QSFP28 to QSFP28 DAC. This direct attach cable provides a reliable connection for high-bandwidth applications. Brand: HP Model: 845404-B21 Cable Length: 1 Meter Connector Type:...
$926.00*
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.
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Overview
High-Speed Data Transfer with Reliable Connectivity
Ensure seamless and rapid data transmission with the HP 1M 100GB QSFP28 to QSFP28 DAC. This direct attach cable provides a reliable connection for high-bandwidth applications.
- Brand: HP
- Model: 845404-B21
- Cable Length: 1 Meter
- Connector Type: QSFP28 to QSFP28
- Data Rate: 100GB
Specifications
Cable Type
DAC (Direct Attach Cable)
Length
1M (1 meter)
Data Rate
100GB
Connectors
QSFP28 to QSFP28
Brand
HP
Pros & Cons
👍 Pros
- Provides 100GB data transfer speed, offering extremely high bandwidth for demanding network applications.
- Features QSFP28 to QSFP28 connectors, ensuring compatibility with high-density, high-speed networking equipment.
- The 1-meter length is suitable for direct connections within racks or between closely located network devices.
- Designed as a Direct Attach Cable (DAC), known for its low latency and cost-effectiveness in short-range connections.
- Manufactured by HP, indicating adherence to industry standards for reliability and performance in enterprise environments.
👎 Cons
- The 1-meter length is very specific and may not be suitable for connections requiring even slightly longer distances.
- DAC cables are generally not as flexible as fiber optic cables, which could be a challenge in very tight rack spaces.
- The QSFP28 interface is a high-end standard, meaning this cable is not compatible with lower-speed SFP+ or standard Ethernet ports.
- Limited to point-to-point connections, as DACs are not designed for routing through complex cable management systems over long distances.
- While cost-effective for short distances, the high-speed interface implies the connected hardware itself is a significant investment.
Frequently Asked Questions
What is the data transfer speed of this HP 845404-B21 DAC cable?
This HP QSFP28 to QSFP28 DAC cable supports an impressive data transfer speed of 100GB, ideal for high-bandwidth applications.
What kind of connectors does this cable use?
The cable is equipped with QSFP28 connectors on both ends, designed for high-density, high-speed networking equipment.
How long is this HP DAC cable?
This HP Direct Attach Cable has a length of 1 meter, making it suitable for short-distance connections within server racks or between adjacent networking devices.
What are the primary advantages of using a Direct Attach Cable (DAC)?
DACs like this HP cable offer advantages such as low latency, high reliability, and cost-effectiveness for short-range, high-speed connections compared to optical transceivers and fiber cables.
Can this cable be used to connect devices with SFP+ ports?
No, this cable is designed with QSFP28 connectors, which are specifically for 100GB interfaces and are not directly compatible with SFP+ ports without adapters, which is outside its intended use.
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