IBM BNT BN-QS-SP-CBL-50CM Compatible 40G QSFP+ to 4xSFP+ DAC Breakout Direct Attach Cable
Best high-speed breakout solution for data center network administrators.
This OptoSpan Direct Attach Cable (DAC) provides a high-performance, cost-effective interconnect solution, serving as a compatible replacement for the IBM P/N BNT BN-QS-SP-CBL-50CM. Measuring 0.5 meters, this copper breakout cable efficiently facilitates 40G to 10G interconnects using four independent data channels. It is built from premium components with high-quality PVC material, ensuring reliability for data centers and networking switches. The cable is individually serialized, pre-programmed, and tested for 100% compliance with specified IBM hardware and the QSFP+ MSA standard, supporting aggregate data rates up to 40 Gb/s.
$95.50
Owner Satisfaction
4.6
/ 5
Category Rank
1108
/ 6543
#1108 in Network Cables
Price vs Category Average
-73%
Below average
Reach
0.5
/ Meter
Who it's for
- System administrators requiring seamless hardware integration
- Network engineers maximizing switch port capacity
- Budget-conscious IT managers reducing infrastructure costs
Who should skip it
- Technicians needing flexibility for long-distance cable runs
- Support teams prioritizing official OEM hardware validation
- Data center staff managing airflow in dense racks
Performance breakdown
Compatibility Assurance
Pre-programmed and tested to ensure seamless integration with IBM hardware environments.
Signal Efficiency
Passive copper design minimizes latency for high-speed 40G to 10G transitions.
Power Efficiency
Extremely low power draw reduces thermal load in dense rack configurations.
Build Integrity
High-quality PVC jacket and stranded conductors provide reliable, flexible cable management.
Deployment Versatility
Ideal for short-reach, high-density interconnects within modern data center server racks.
Compliance Standards
Fully adheres to QSFP+ MSA specifications for consistent, industry-standard network performance.
Key Specs
Reach
0.5 Meter
Type
QSFP+ to 4xSFP+ DAC
Mode
Copper
Bandwidth
40 Gbps
Jacket Material
PVC
Conductor Material
Copper
Certifications
TAA
PART #
QCB-40G-M0P5IR1
Features
- Enables 40G to 10G breakout interconnects
- Supports 10/40 Gigabit Ethernet standards
- Individually serialized and pre-programmed
- Low power consumption of 0.02 W (typ.)
- Designed for hybrid link lengths up to 5m
- 4-Channel Full-Duplex Passive Copper Cable
- IBM Compatible
- 0.5 Meter Length
What customers say
This OptoSpan cable earns high praise for its outstanding value and seamless integration. Users consistently report exceptional plug and play functionality, effortlessly connecting within IBM BNT networking environments without complex setup. The core appeal is achieving OEM level performance and reliability while offering significant budget relief. It proves to be a highly efficient solution for 40G to 10G breakout needs, delivering dependable connectivity that data center professionals trust. This cable successfully balances premium function with smart cost savings.
Know before you buy
Yes, this OptoSpan cable is specifically programmed and tested to be a direct, compatible replacement for the IBM BNT BN-QS-SP-CBL-50CM part number, ensuring it functions seamlessly with your IBM equipment.
Yes, this is a breakout cable designed to split a single 40G QSFP+ port into four independent 10G SFP+ channels, making it ideal for high-density interconnects.
No, this is a passive copper cable that requires no external power. It is pre-programmed and ready for plug-and-play installation.
This specific cable is 0.5 meters in length. While the design supports hybrid link lengths up to 5 meters, this particular unit is optimized for short-reach connections within a rack or between adjacent equipment.
No, this cable is not outdoor-rated. It is designed for indoor data center and networking switch environments.
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