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HPE

HPE 844480-B21 | 25G SFP28 DAC twinax (passive), 5m, 25GBASE-CR, SFP28-SFP28

SKU:844480-B21

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Description

25Gbps SFP28-to-SFP28 passive direct-attach copper cable with integrated connectors, 5 meters in length. Provides low-latency, low-power 25G links between servers, adapters, and switches for extended short-reach runs. Built to SFP28/IEEE 802.3by standards for dependable interoperability on 25G ports.

Features

- Simple, cost-effective 25G interconnect for 5 m runs
- Very low latency and jitter
- No optics or separate modules required
- Durable, shielded twinax for noisy environments
- Hot-pluggable for fast deployment

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is this cable passive or active?
A: Passive twinax (no active electronics in the cable).

Q: Do I need separate SFP28 transceivers?
A: No, the SFP28 connectors are integrated into the cable ends.

Q: Will it work between two switches?
A: Yes, if both devices have SFP28 25G ports and compatible coding.

Q: Can it downshift to 10G?
A: Some platforms support 10G fallback on SFP28 ports, but it is not guaranteed—verify your platform capabilities.

Q: What connectors are used?
A: SFP28 male on both ends.

Technical Specifications

- Interface: SFP28 to SFP28
- Data rate: 25 Gbps
- Cable type: Passive direct-attach copper (twinax)
- Length: 5 m
- Standard compliance: IEEE 802.3by; 25G SFP28; 25GBASE-CR
- Reach: up to 5 m
- Hot-pluggable SFP28 ends
- Shielding: Low-EMI twinax construction
- Use case: Server-to-switch, storage, short-to-medium reach interconnects

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