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Axiom 721064-B21-AX 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ Passive DAC Cable - 3m (9. 8 ft) Twinaxial Breakout Cable for HP Network Devices
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Product Features
Technical Overview
This DAC cable utilizes a twinaxial construction, which provides robust signal integrity and electromagnetic interference (EMI) resistance over short to medium distances. The cable features a QSFP+ male connector on one end, which breaks out into four SFP+ male connectors on the other end, allowing a single 40GbE port to connect to four 10GbE ports.
The passive architecture means the cable does not require external power or signal conditioning, relying on the host devices for signal transmission. This simplifies deployment and reduces points of failure, while the black color and durable build ensure it blends seamlessly into rack environments and withstands regular handling.
Key Product Advantages
This cable offers several distinct benefits for network administrators seeking to optimize connectivity and reduce complexity in their infrastructure.
High-Speed Breakout Capability
Enables a single 40GbE QSFP+ port to connect to four 10GbE SFP+ ports, maximizing port utilization and simplifying cabling in high-density switches and routers.
- Aggregates multiple 10GbE links into one 40GbE connection
- Reduces cable clutter and management overhead
- Ideal for top-of-rack and end-of-row deployments
Cost-Effective and Reliable
As a passive DAC solution, it eliminates the need for separate optical transceivers and fiber cables, lowering both upfront costs and long-term maintenance while providing stable, low-latency performance.
- No external power or active components required
- Lower total cost of ownership compared to optical solutions
- Durable twinaxial design for consistent signal quality
Deployment / Use Cases
This cable is versatile for various networking scenarios where high-speed, short-reach connections are needed between compatible devices.
In data centers, it can connect spine switches with QSFP+ ports to leaf switches with SFP+ ports, facilitating efficient spine-leaf architectures. For enterprise networks, it enables server-to-switch connections in rack setups, supporting virtualization, storage area networks (SANs), and high-bandwidth applications.
It is also suitable for high-performance computing clusters, where low latency and reliable data transfer are essential for parallel processing tasks. The HP compatibility ensures seamless integration with existing HP networking equipment, reducing compatibility concerns during upgrades or expansions.
Highlights
- 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ passive DAC breakout cable for high-speed networking
- 3-meter (9.8 ft) twinaxial cable with robust signal integrity and EMI resistance
- QSFP+ male connector on one end breaks out to four SFP+ male connectors for efficient port utilization
- Supports 40 Gbit/s data transfer rate, ideal for data centers and enterprise networks
- Passive design requires no external power, reducing complexity and power consumption
- Compatible with HP network devices, switches, and routers for seamless integration
- Breakout style simplifies cabling by connecting one 40GbE port to multiple 10GbE ports
- Lifetime warranty provides long-term reliability and peace of mind
- Black color and durable build for discreet, long-lasting deployment in rack environments
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | 721064-B21-AX |
| Brand Name | Axiom |
| Product Name | 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ Passive DAC Cable HP 3m |
| Product Type | Network Cable |
| Technical Information | |
| Cable Type | Twinaxial |
| Cable Length | 9.8 ft (3 m) |
| Connector Type on First End | QSFP+ Network - Male |
| Connector Gender on First End | Male |
| Connector on First End Details | 1 x QSFP+ Network - Male |
| Connector Type on Second End | SFP+ Network - Male |
| Connector Gender on Second End | Male |
| Connector on Second End Details | 4 x SFP+ Network - Male |
| Device Supported | Network Device,Router,Switch |
| Data Transfer Rate | 40 Gbit/s |
| Features | Breakout Style,Passive |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the purpose of this QSFP+ to SFP+ breakout cable?
This cable allows you to connect a single 40GbE QSFP+ port on a switch or router to four separate 10GbE SFP+ ports, enabling efficient aggregation of network traffic. It is commonly used in data centers and enterprise networks to maximize port usage, reduce cable clutter, and simplify high-density deployments without needing additional transceivers.
Is this cable active or passive, and what does that mean for performance?
This is a passive direct attach copper (DAC) cable, meaning it does not contain active electronics or require external power. It relies on the host devices for signal transmission, resulting in lower power consumption, minimal latency, and reduced cost compared to active cables or optical solutions. Passive cables are ideal for short-reach connections up to a few meters where signal integrity is maintained.
What devices is this cable compatible with?
The cable is designed for compatibility with HP network devices, switches, and routers that support 40GBASE-CR4 QSFP+ and 10GBASE-CU SFP+ interfaces. It can be used to connect compatible HP equipment in data center, enterprise, or high-performance computing environments, but always verify specific model compatibility before deployment to ensure optimal performance.
How long is the cable, and is it suitable for rack installations?
The cable is 3 meters (9.8 feet) long, making it well-suited for rack-to-rack or within-rack connections in data centers and server rooms. This length provides enough flexibility for routing without excessive slack, and the twinaxial construction ensures durability and reliable signal transmission over this distance in typical rack environments.
| Qty | Price | Available |
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