Axiom JL487A-0. 5M-AX 25GBASE-CU SFP28 Passive DAC Twinax Cable - 0. 5m (1. 6 ft) HP Compatible Direct Attach Cable
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Product Features
Technical Overview
This cable operates as a passive Direct Attach Copper solution, meaning it does not require external power or signal conditioning electronics. The SFP28 connectors on both ends are keyed for network devices, providing a plug-and-play connection that simplifies deployment and reduces points of failure in the link.
The 25GBASE-CU standard ensures compliance with industry specifications for 25 Gigabit Ethernet over copper. The twinaxial cable design offers robust signal integrity over the 0.5-meter distance, maintaining data integrity without active components.
Key Product Advantages
This cable delivers several practical benefits for network administrators and IT professionals. Its passive design reduces power consumption and heat generation compared to active optical cables, while the direct attach construction lowers total cost of ownership by eliminating transceiver modules.
Simplified Connectivity
The pre-terminated SFP28 connectors provide a ready-to-use solution that minimizes installation time and complexity, ensuring reliable connections without manual termination or configuration.
- Plug-and-play deployment
- No transceivers required
- Reduces link components
Cost-Effective Performance
Offering 25 Gbit/s throughput at a lower price point than optical alternatives, this cable provides excellent value for short-reach applications where copper solutions are optimal.
- Lower cost than fiber
- 25 Gbit/s bandwidth
- HP ecosystem compatibility
Deployment / Use Cases
This DAC cable is ideal for connecting network switches, routers, servers, and storage devices within racks or between adjacent racks in data center environments. The 0.5-meter length makes it perfect for top-of-rack switching configurations and short interconnects where minimal cable management is desired.
Common applications include spine-leaf network architectures, high-performance computing clusters, storage area networks, and enterprise network upgrades to 25 Gigabit Ethernet. The HP compatibility ensures reliable operation in HP networking equipment deployments, providing a certified solution for maintaining warranty and support coverage.
Data Center Interconnects
Connect switches to servers within the same rack or adjacent racks, reducing cable clutter while maintaining full 25 Gbit/s bandwidth for critical traffic.
Network Upgrades
Upgrade existing 10 Gigabit links to 25 Gigabit Ethernet without replacing entire cable plants, leveraging the same SFP28 port infrastructure.
Highlights
- 25GBASE-CU SFP28 Passive DAC Twinax Cable for 25 Gbit/s networking
- 0.5-meter (1.6-foot) length ideal for short-reach data center connections
- SFP28 connectors on both ends for direct attachment to network devices
- Passive design requires no external power or signal conditioning
- HP compatible for seamless integration with HP networking equipment
- Twinaxial cable construction ensures reliable signal integrity
- Direct Attach Copper solution eliminates need for separate transceivers
- Cost-effective alternative to fiber optic cabling for short distances
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | JL487A-0.5M-AX |
| Brand Name | Axiom |
| Product Name | 25GBASE-CU SFP28 Passive DAC Twinax Cable HP Compatible 0.5m |
| Product Type | Network Cable |
| Technical Information | |
| Cable Type | Twinaxial |
| Cable Length | 1.6 ft (0.50 m) |
| Connector Type on First End | SFP28 Network |
| Connector on First End Details | SFP28 Network |
| Device Supported | Network Device |
| Data Transfer Rate | 25 Gbit/s |
| Features | Passive |
FAQ
What is the maximum distance this cable can support?
This passive DAC cable is designed for short-reach applications up to 0.5 meters (1.6 feet). Passive DAC cables typically support distances up to 3-5 meters depending on the specific implementation, but this particular model is optimized for the 0.5-meter length specified. For longer distances, active optical cables or fiber optic solutions would be more appropriate.
Is this cable compatible with non-HP network equipment?
While engineered for HP compatibility, SFP28 DAC cables often work with other vendors' equipment that supports the 25GBASE-CU standard. However, compatibility should be verified with the specific device manufacturer, as some equipment may require vendor-specific coding or have firmware restrictions. The cable uses standard SFP28 connectors and follows industry specifications for passive DAC cables.
What does 'passive' mean for this DAC cable?
Passive means the cable contains no active electronics, signal conditioning, or retiming components. It relies on the electrical properties of the copper conductors and connectors to transmit signals. This makes passive DAC cables simpler, more reliable, and lower power than active alternatives, though they have shorter maximum distance capabilities. Passive cables are ideal for very short connections where signal integrity can be maintained without amplification.
Can this cable be used for 10 Gigabit Ethernet connections?
While physically compatible with SFP28 ports, this cable is specifically designed for 25 Gigabit Ethernet (25GBASE-CU). Some SFP28 ports may support backward compatibility with 10 Gigabit speeds through auto-negotiation or manual configuration, but optimal performance is achieved at the designed 25 Gbit/s data rate. For dedicated 10 Gigabit applications, a 10GBASE-CR cable would be more appropriate.
| Qty | Price | Available |
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