Axiom SFP25GDAC02M-AX 25GBASE-CU SFP28 Passive DAC Twinax Cable 2m - 6. 6 ft - SFP28 to SFP28 Network Cable for Router - Switch
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Product Features
Technical Overview
This cable complies with the 25GBASE-CU standard, supporting data rates up to 25 Gbps over copper twinax cabling. The SFP28 connectors are keyed for secure insertion and removal, maintaining signal integrity across the 2-meter span. The passive construction means the cable does not include active electronics for signal amplification, relying on the host devices' SFP28 ports to drive the connection.
The twinax design provides balanced differential signaling, reducing electromagnetic interference and crosstalk for stable performance in dense network setups. This cable is backward compatible with SFP+ ports running at 10 Gbps, though optimal performance is achieved with native 25GbE SFP28 interfaces.
Key Product Advantages
This DAC cable offers several benefits for network administrators seeking reliable high-speed interconnects. Its plug-and-play design reduces deployment time and complexity compared to fiber solutions that require separate transceivers and configuration.
Cost-Effective Performance
Delivers 25GbE speeds without the expense of optical transceivers, making it ideal for budget-conscious upgrades or expansions.
- Lower total cost of ownership
- No separate transceiver purchases needed
Low Latency & Reliability
Copper twinax construction ensures minimal signal delay and consistent performance in controlled environments like server racks or adjacent switches.
- Reduced latency vs. active cables
- Stable operation in typical data center conditions
Deployment / Use Cases
This cable is primarily used for short-reach connections between network devices equipped with SFP28 ports. Common applications include linking top-of-rack switches to servers, connecting spine and leaf switches in fabric architectures, or establishing high-speed links between routers in enterprise backbones.
It is well-suited for environments where 25GbE throughput is required but fiber optic distances are unnecessary, such as within a single rack or between adjacent racks in a data center. The passive design makes it ideal for scenarios where simplicity and reliability are prioritized over extended reach or signal regeneration.
Data Center Interconnects
Connect servers to switches within the same rack for high-performance computing, virtualization, or storage networking.
- Server-to-switch links
- Rack-level connectivity
Network Aggregation
Establish 25GbE uplinks between switches to aggregate traffic from multiple 10GbE or 1GbE access layers.
- Switch-to-switch uplinks
- Traffic aggregation points
Highlights
- 25GBASE-CU compliant for 25 Gbps data rates
- SFP28 connectors on both ends for direct attachment
- 2-meter (6.6-foot) length ideal for rack-to-rack or intra-rack use
- Passive DAC design for plug-and-play operation
- Compatible with routers and switches supporting SFP28
- Twinax copper construction for reliable signal integrity
- Backward compatible with SFP+ ports at 10 Gbps
- Lifetime limited warranty for long-term peace of mind
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | SFP25GDAC02M-AX |
| Brand Name | Axiom |
| Product Name | 25GBASE-CU SFP28 Passive DAC Twinax Cable 2m |
| Product Type | Network Cable |
| Technical Information | |
| Cable Type | DAC |
| Cable Length | 6.6 ft (2 m) |
| Connector Type on First End | SFP28 Network |
| Connector on First End Details | 1 x SFP28 Network |
| Connector Type on Second End | SFP28 Network |
| Connector on Second End Details | 1 x SFP28 Network |
| Device Supported | Router,Switch |
| Features | Passive |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the maximum data rate supported by this cable?
This cable supports data rates up to 25 Gbps, compliant with the 25GBASE-CU standard. It is designed for full-duplex operation on compatible SFP28 ports, providing high-speed connectivity for bandwidth-intensive applications like data center networking or high-performance computing.
Can this cable be used with SFP+ ports?
Yes, the cable is backward compatible with SFP+ ports, but it will operate at the lower 10 Gbps data rate of the SFP+ interface. For optimal 25 Gbps performance, use it with native SFP28 ports on routers, switches, or other network devices.
What does 'passive DAC' mean for this cable?
Passive DAC means the cable does not contain active electronics for signal amplification or retiming. It relies on the host device's SFP28 port to drive the signal across the copper twinax conductors. This results in lower cost, reduced power consumption, and simpler operation compared to active DAC or optical solutions.
What devices are compatible with this cable?
This cable is compatible with routers and switches that have SFP28 ports supporting the 25GBASE-CU standard. It is designed for direct connection between two such devices over short distances, typically within a rack or between adjacent racks in data center environments.
| Qty | Price | Available |
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