Skip to product information
1 of 1

HPE

HPE 844477-B21 | 25G SFP28 DAC twinax (passive), 3m, 25GBASE-CR, SFP28-SFP28

SKU:844477-B21

Regular price POA
POA
POA
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

25Gbps SFP28-to-SFP28 passive direct-attach copper cable with integrated connectors, 3 meters in length. Delivers low-latency, low-power 25G links between servers, adapters, and switches, ideal for top-of-rack connections. Built to SFP28/IEEE 802.3by standards for dependable interoperability on 25G ports.

Features

- Plug-and-play SFP28 to SFP28 25G connectivity
- Ultra-low latency passive twinax design
- Power-free cable, low heat and high reliability
- Cost-effective short-reach interconnect
- Robust shielding for reduced EMI in dense racks

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.

View full details
  • You may also like
  • Best sellers
  • Related Products

specs-tabs

Collapsible content

FAQs

Technical Specifications

FAQs

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

Q: Does it require separate transceivers?
A: No. The SFP28 ends are integrated; plug directly into SFP28 ports.

Q: Can this operate at 10G in SFP+ ports?
A: It is intended for SFP28 25G ports. Some platforms support 10G fallback, but this is device/firmware dependent—check your switch/NIC documentation.

Q: Is it suitable for top-of-rack server uplinks?
A: Yes, DAC twinax is ideal for short, low-latency TOR connections.

Q: What is the connector type on each end?
A: SFP28 male on both ends.

Technical Specifications

- Interface: SFP28 to SFP28
- Data rate: 25 Gbps
- Cable type: Passive direct-attach copper (twinax)
- Length: 3 m
- Standard compliance: IEEE 802.3by; 25G SFP28; 25GBASE-CR
- Reach: up to 3 m
- Hot-pluggable SFP28 ends
- Shielding: Low-EMI twinax construction
- Use case: Server-to-switch, storage, short-reach interconnects

Recently Viewed

  • Request for a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  
  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us